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Mid-range theory of the nursing diagnosis Overweight

Teoria de médio alcance do diagnóstico de enfermagem sobrepeso

Teoría de rango medio del diagnóstico de enfermería sobrepeso

ABSTRACT

Objective:

To build a mid-range theory for the nursing diagnosis Overweight in adolescents and young adults.

Methods:

A methodological study in the light of the theoretical frameworks of Roy and of Lopes, Silva and Herdman. A total of 3,925 articles were retrieved and assessed using the State of the Art Through Systematic Review software. The final sample consisted of 28 articles.

Results:

The findings converged to 3 essential attributes, 13 antecedents, and 7 consequences. A mid-range theory was built consisting of an illustrated diagram, 11 propositions, and 12 causal relationships.

Final considerations:

From the creation of the theory, it was possible to better understand the nursing diagnosis Overweight within the context of adolescents and young adults. Understanding nursing phenomena contributes to nursing science’s advancement and strengthening.

Descriptors:
Nursing Theory; Nursing Diagnosis; Overweight; Adolescent; Young Adult

RESUMO

Objetivo:

Construir uma teoria de médio alcance para o diagnóstico de enfermagem Sobrepeso em adolescentes e adultos jovens.

Método:

Estudo metodológico à luz dos referenciais teóricos de Roy e Lopes, Silva e Herdman. Um total de 3.925 artigos foram identificados e avaliados usando o programa State of the Art Through Systematic Review. A amostra final foi composta por 28 artigos.

Resultados:

Os achados convergiram para 3 atributos essenciais, 13 antecedentes e 7 consequentes. Foi construída uma teoria de médio alcance composta por um diagrama ilustrado, 11 proposições e 12 relações causais.

Considerações finais:

A partir da elaboração da teoria, foi possível compreender melhor o diagnóstico de enfermagem Sobrepeso no contexto de adolescentes e adultos jovens. A compreensão dos fenômenos da enfermagem contribui para o avanço e fortalecimento da ciência da enfermagem.

Descritores:
Teoria de Enfermagem; Diagnósticos de Enfermagem; Sobrepeso; Adolescente; Adulto Jovem

RESUMEN

Objetivo:

Construir una teoría de rango medio para el diagnóstico de enfermería Sobrepeso en adolescentes y adultos jóvenes.

Métodos:

Estudio metodológico a la luz de los marcos teóricos de Roy y de Lopes, Silva y Herdman. Un total de 3.925 artículos fueron recuperados y evaluados utilizando el software State of the Art Through Systematic Review. La muestra final fue de 28 artículos.

Resultados:

Los resultados convergieron en 3 atributos esenciales, 13 antecedentes y 7 consecuencias. Se construyó una teoría de rango medio compuesta por un diagrama ilustrado, 11 proposiciones y 12 relaciones causales.

Consideraciones finales:

A partir de la creación de la teoría, fue posible comprender mejor el diagnóstico de enfermería Sobrepeso en el contexto de adolescentes y adultos jóvenes. La comprensión de los fenómenos de enfermería contribuye para el avance y fortalecimiento de la ciencia de enfermería.

Descriptores:
Teoría de Enfermería; Diagnóstico de Enfermería; Sobrepeso; Adolescente; Adulto Joven

INTRODUCTION

Mid-range theories (MRT) in nursing are an effective strategy to reduce the distance between clinical practice and teaching. Developing key concepts and measurable variables helps nurses in individualized critical and clinical reasoning, promoting the accuracy of nursing diagnoses(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
, 22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.). However, despite representing the knowledge of the discipline and guiding practice, the development of MRTs worldwide and nationally is still limited. Few studies have addressed mid-range theories in Brazil, causing a theoretical assistance gap in various settings(33 Brandão MAG, Martins JSA, Peixoto MAP, Lopes ROP, Primo CC. Theoretical and methodological reflections for the construction of middle-range nursing theories. Texto Contexto Enferm. 2017;26(4):1-8. https://doi.org/10.1590/0104-07072017001420017
https://doi.org/10.1590/0104-07072017001...
, 44 Primo CC, Brandão MAG. Interactive theory of breastfeeding: creation and application of a middle-range theory. Rev Bras Enferm. 2017;70(6):1191-8. https://doi.org/10.1590/0034-7167-2016-0523
https://doi.org/10.1590/0034-7167-2016-0...
).

Given the above, healthcare for people with overweight stands out due to the wide variety of generic meanings of clinical indicators and factors related to this nursing diagnosis (ND), which makes it difficult for nurses to make decisions(55 Associação Brasileira para o estudo da obesidade e da síndrome metabólica. Diretrizes Brasileiras de Obesidade [Internet]. 4ª ed. São Paulo: Abeso; 2016[cited 2023 Sep 1]. 188 p, http://www.abeso.org.br/uploads/downloads/92/57fccc403e5da.pdf
http://www.abeso.org.br/uploads/download...
).

Defined by a body mass index (BMI) equal to or greater than 25 kg/m², the recognition of overweight in clinical practice is commonly easy, but the proper diagnosis and identification of clinical indicators and etiologic factors still generates impasse among health professionals(55 Associação Brasileira para o estudo da obesidade e da síndrome metabólica. Diretrizes Brasileiras de Obesidade [Internet]. 4ª ed. São Paulo: Abeso; 2016[cited 2023 Sep 1]. 188 p, http://www.abeso.org.br/uploads/downloads/92/57fccc403e5da.pdf
http://www.abeso.org.br/uploads/download...
).

Failure to identify overweight promptly favors the installation of the nursing diagnosis and its consequent manifestation (clinical signs and symptoms). According to research(66 Alberga AS, Sigal RJ, Goldfield G, Prud’homme D, Kenny G P. Overweight and obese teenagers: why is adolescence a critical period?. Pediatric Obesity. 2012;7(4):261-73. https://doi.org/10.1111/j.2047-6310.2011.00046.x
https://doi.org/10.1111/j.2047-6310.2011...
) adolescents and young adults constitute the group most vulnerable to overweight, motivated by changes in body composition, insulin sensitivity, psychological adjustments, unhealthy eating behaviors, and the beginning of academic life. Overweight young people are often obese adults with low quality of life due to associated comorbidities and psychological diseases(77 Barnet TA, Kelly AS, Young DR, Perry CK, Pratt CA, Edwards NM, et al. Findings from university hospital broaden understanding of obesity (sedentary behaviors in today’s youth: approaches to the prevention and management of childhood obesity: a scientific statement from the American heart association). Med Devices Surg Technol Week. 2018;138(11):e142-e159. https://doi.org/10.1161/CIR.0000000000000591
https://doi.org/10.1161/CIR.000000000000...
).

In the care setting, the nurse and the multidisciplinary team develop measures to promote health and prevent adverse health outcomes resulting from overweight and obesity(88 Freire RMA, Landeiro MJL, Martins MMFPS, Martins T, Peres HHC. A look at health promotion and the prevention of complications: differences in contexts. Rev Latino-Am Enfermagem. 2016;24:e2749. https://doi.org/10.1590/1518-8345.0860.2749
https://doi.org/10.1590/1518-8345.0860.2...
). However, there is difficulty in raising awareness and coping with the condition on the part of clients, due, among other factors, to deficits in the professional-client approach and lack of prioritization(99 Blackburn M, Stathi A, Keogh E, Eccleston C. Raising the topic of weight in general practice: perspectives of GPs and primary care nurses. BMJ Open. 2015;5(8)e008546. https://doi.org/10.1136/bmjopen-2015-008546
https://doi.org/10.1136/bmjopen-2015-008...
).

Braga et al.(1010 Braga VAS, Jesus MCP, Conz CA, Tavares RE, Silva MH, Merighi MAB. Nursing interventions with people with obesity in Primary Health Care: an integrative review. Rev Esc Enferm USP. 2017;51:e03293. https://doi.org/10.1590/S1980-220X2017019203293
https://doi.org/10.1590/S1980-220X201701...
) (2017) reinforce the need for nurses to have a more intriguing look at the nutritional aspects of their clientele. Nursing interventions aimed at overweight are intended to enable the population to deal with the sources of stress to restore a new, healthy and increasingly complete balance, with minimal damage caused by exposure to risk.

The literature presents studies on the prevalence of obesity and overweight in adolescents and young adults(1111 Neves SC, Rodrigues LM, Bento PASS, Minayo MCS. Risk factors involved in adolescent obesity: an integrative review. Ciênc Saúde Colet. 2021;26(suppl 3):4871-84. https://doi.org/10.1590/1413-812320212611.3.30852019
https://doi.org/10.1590/1413-81232021261...
, 1212 Piexak DR, Gomes M P, Costa CCSS, Gama BS, Martins KP, Barlem ELD. Development of the nursing process according to psychobiological needs self-referred by students. Rev Enferm UERJ. 2020;28:e51231. https://doi.org/10.12957/reuerj.2020.51231
https://doi.org/10.12957/reuerj.2020.512...
, 1313 Teixeira CGO, Silva FMS, Venancio PEM. The relationship between obesity and metabolic syndrome in adolescents between ages 10 and 14, with abdominal obesity. Acta Scienti Health Sci. 2009;31(2):143. https://doi.org/10.4025/actascihealthsci.v31i2.6194
https://doi.org/10.4025/actascihealthsci...
). A cross-sectional study in Rio Grande do Norte, Brazil, identified a prevalence of the nursing diagnosis of overweight in 28.8% of adolescent students from public schools(1414 Vieira CENK, Enders BC, Coura AS, Lira ALBC, Medeiros CCM, Mariz LS. Nursing Diagnosis of overweight and related factors in adolescents. Investir Educ Enferm Medellín. 2015;33(3):509-18. https://doi.org/10.17533/udea.iee.v33n3a15
https://doi.org/10.17533/udea.iee.v33n3a...
). However, no studies on the development of a MRT of overweight in adolescents/young adults were identified in the literature.

The knowledge about the essential attributes, clinical antecedents, and consequences of overweight in adolescents and young adults can be used to improve the understanding of this phenomenon and nursing care. Therefore, it is considered that the clinical development of a diagnosis occurs gradually, depending on three elements: antecedent element (presumably the etiological factors that provoke the situation), consequent element (clinical indicators that represent the effects of the first element) and a set of essential attributes (key elements that define the beginning of the clinical diagnosis).

It is believed that developing a MRT of overweight will improve the diagnostic inferential process, contributing for nursing care that corresponds to the real needs of adolescents with overweight, through a theoretical-causal validation of the relationships between the diagnostic components. Furthermore, the theory can help in the improvement of the NANDA International taxonomy, as well as in the advancement of nursing science.

The research question of the study was: How is a mid-range theory, aimed at the nursing diagnosis overweight in adolescents and young adults, configured?

OBJECTIVE

To build a mid-range theory for the nursing diagnosis overweight in adolescents and young adults.

METHODS

To validate the concept of nursing diagnosis overweight in adolescents and young adults, a middle-range theory will be used to characterize the diagnostic structure and establish hypotheses for the clinical and causal relationships of the diagnostic components. It consists of a smaller number of more concrete concepts and analyzes their possible causal relationships, to facilitate understanding the manifestation of a phenomenon.

Ethical aspects

Ethical review and approval were waived for this study due to not involved human beings. Declaration of Free and Informed Consent not applicable to the type of study developed.

Design and period of study

This is a methodological study by theoretical-causal validity. This type of research aims to develop, validate and evaluate research tools and methods(1515 Polit DF, Beck CT. Fundamentals of Nursing Research: assessing the evidence for nursing practice. 7th ed. 2011.). This study was developed in 2021.

The mid-range theory of overweight in adolescents and young adults was developed in light of the frameworks by Roy(22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.) (2014) and Lopes, Silva & Herdman(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
) (2015). The following steps were followed: (1) definition of the approach for theory construction, (2) definition of key concepts, (3) construction of a pictorial diagram, (4) formulation of propositions, (5) establishment of causal relationships, and (6) evidence for practice.

In the first stage, an integrative literature review was carried out to present the knowledge produced about the nursing diagnosis Overweight in adolescents and young adults. This step was responsible for building the construction of the middle range theory(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
, 22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.).

Then, it was then possible to define the key concepts of the second stage: essential attributes, clinical antecedents and clinical consequences(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
). Conceptual and operational definitions were constructed for each key concept, with the aim of facilitating its measurement in clinical practice(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
, 22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.).

In the third stage, an illustrated pictogram-type diagram was developed with the aim of clarifying the relationships between the concepts studied. From this scheme, it was verified the relationships between concepts with greater clarity(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
).

The fourth stage consists of developing explanatory relationships between essential attributes, clinical antecedents and clinical consequences, based on the findings of the integrative literature review(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
).

The fifth stage aimed to establish relationships between two or more concepts based on evidence, provided by the results of the studies used to build the theory(22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.). There are four categories of related factors, known as: precipitants, which are those that initiate the causal chain; predisposing factors, which act to make the individual more susceptible to a certain phenomenon; disabling, whose factors interfere with recovery and health promotion; and reinforcers, which amplify the effects of already existing conditions(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
).

Finally, in step six, causal relationships between key concepts were constructed, which can provide evidence for practicing and testing the constructed MRT(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
).

Study protocol and sample

An integrative literature review on overweight in adolescents and young adults guided the six stages of construction of the MRT(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
, 22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.). It was developed to reveal the essential attributes, antecedents, and consequences and support the description of their conceptual and operational definitions. The synthesis of results from different studies has been considered a successful approach to creating MRTs(22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.).

The literature review followed the framework proposed by Souza, Silva & Carvalho(1616 Souza MT, Silva MD, Carvalho R. Integrative review: what it is and how to do it. Einstein. 2010;8:102-6. https://doi.org/10.1590/S1679-45082010RW1134
https://doi.org/10.1590/S1679-45082010RW...
) (2010) was adopted, with 6 steps: (1) elaboration of the review’s guiding questions, (2) literature search and sample selection, (3) data collection from the selected studies, (4) critical analysis of the included studies, (5) discussion of results, and (6) synthesis of the knowledge extracted from the studies.

The following guiding question was elaborated for the review: “What clinical antecedents and consequences influence the diagnosis of overweight in adolescents and young adults?”. The Person, Concept, Context (PPC) framework by Arksey & O’Malley(1717 Arksey H, O’Malley L. Scoping studies: towards a methodological framework. Int J Soc Res Methodol. 2005;8(1):19-32. https://doi.org/10.1080/1364557032000119616
https://doi.org/10.1080/1364557032000119...
) (2005) was used to establish the question above.

Next, a pilot search was carried out in the literature to identify the databases with the highest number of indexed publications on the theme of overweight. The following databases were chosen: Cumulative Index to Nursing and Allied Health Literature (CINAHL), Scopus, Pubmed, and Web of Science. The database search took place between August and September 2020 and was carried out by the principal investigator. The descriptors “Overweight”, “Adolescent”, and “Young Adult” were chosen for the search, identified in MeSH and DeCS. The descriptors were paired with the Boolean operators “AND” and “OR”.

The inclusion criteria used to refine the searches were: free access, full-text availability, studies with target populations aged 17-24 years, and studies published from 2016 to 2020. There was no language limitation. Studies that did not respond to the research question, letters to the reader, editorials, research projects, and literature reviews were excluded. A Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flow chart was used to present the study selection results (Figure 1).

Figure 1
Flow chart of study selection

The chosen age group (17-24 years) is in line with the World Health Organization’s(1818 Organização Mundial de Saúde (OMS). Young People´s Health - a Challenge for Society: report of a WHO Study Group on Young People and Health for All. Technical Report Series [Internet]. 1986[cited 2023 Sep 1]. https://apps.who.int/iris/handle/10665/41720
https://apps.who.int/iris/handle/10665/4...
) (1986) definition of adolescence and youth – ages with a greater tendency to be overweight. The time frame (2016 to 2020) is justified by the need to list antecedents and consequences that influence the target population in recent years, since this population is impacted by temporal and daily influences.

In the third stage, the studies were categorized, and the information to be extracted from the selected articles was defined. At this stage, titles and abstracts were screened to define the sample. This step was developed through consensus between three researchers.

Next, a critical analysis of the included studies was carried out by full-text screening. The titles, authors, countries, years of publication, objectives, areas, target audiences, locations, study themes, and levels of evidence were analyzed, as well as the presence of definitions, antecedents, and consequences of overweight. This step was developed exclusively by the principal investigator.

The fifth stage included the discussion of the results from the interpretation and synthesis of the findings. Finally, the sixth stage was conducted, consisting of the final synthesis of the findings with the creation of charts and figures containing the essential attributes, antecedents, and consequences of overweight, as well as the operational and conceptual definitions.

Analysis of the results and statistics

The data analysis was performed using the State of the Art Through Systematic Review (START) software. Studies were categorized, and the information be extracted. The results were organized into chart and figures containing the essential attributes, clinical antecedents and clinical consequences of the nursing diagnosis Overweight, as well as its operational and conceptual definitions, in order to guide the discussion. It took place also an illustrated pictogram-type diagram. The data were analyzed according to the adopted framework and related literature.

RESULTS

Initially, 3,925 articles were found in the analyzed databases. After applying the inclusion and exclusion criteria and reading the titles and abstracts, 80 articles were selected. Despite the high number of articles initially found, the final sample consisted of 28 articles after full-text reading.

Most publications on the topic of overweight in adolescents and young adults were published in 2017 (25.0%) and 2018 (25.0%). Most studies were from Europe (32.1%), written in English (85.7%), focused on the medicine area (46.4%), and level VI evidence (71.4%).

“Intermediate body weight”, “age,” and “height” were listed as essential attributes. Thus, overweight in adolescents and young adults was defined as an “intermediate stage of increase in body weight for age and height”.

Regarding the clinical antecedents and consequences were listed based on findings from the integrative literature review, based on its incidence in adolescents and young adults(55 Associação Brasileira para o estudo da obesidade e da síndrome metabólica. Diretrizes Brasileiras de Obesidade [Internet]. 4ª ed. São Paulo: Abeso; 2016[cited 2023 Sep 1]. 188 p, http://www.abeso.org.br/uploads/downloads/92/57fccc403e5da.pdf
http://www.abeso.org.br/uploads/download...
, 66 Alberga AS, Sigal RJ, Goldfield G, Prud’homme D, Kenny G P. Overweight and obese teenagers: why is adolescence a critical period?. Pediatric Obesity. 2012;7(4):261-73. https://doi.org/10.1111/j.2047-6310.2011.00046.x
https://doi.org/10.1111/j.2047-6310.2011...
, 1919 Ataey A, Jafarvand E, Adham D, Moradi-Asl E. The Relationship Between Obesity, Overweight, and the Human Development Index in World Health Organization Eastern Mediterranean Region Countries. J Prev Med Public Health. 2020;53(2):98-105. https://doi.org/10.3961/jpmph.19.100
https://doi.org/10.3961/jpmph.19.100...
, 2020 Rodríguez-Arauz G, Ramírez-Esparza N, Smith-Castro V. Food attitudes and well-being: the role of culture. Appetite. 2016;105:180-8. https://doi.org/10.1016/j.appet.2016.05.019
https://doi.org/10.1016/j.appet.2016.05....
, 2121 Brewis AA, Bruening M. Weight shame, social connection, and depressive symptoms in late adolescence. Int J Environ Res Public Health. 2018;15(5):891. https://doi.org/10.3390/ijerph15050891
https://doi.org/10.3390/ijerph15050891...
, 2222 Ng M, Fleming T, Robinson M, Thomson B, Graetz N, Margono C, et al. Global, regional, and national prevalence of overweight and obesity in children and adults during 1980–2013: a systematic analysis for the Global Burden of Disease Study 2013. Lancet. 2014;384(9945):766-81. https://doi.org/10.1016/S0140-6736(14)60460-8
https://doi.org/10.1016/S0140-6736(14)60...
, 2323 Micklesfield LK, Munthali RJ, Prioreschi A, Said-Mohamed R, van Heerden A, Tollman S, et al. Understanding the Relationship between Socio-Economic Status, Physical Activity and Sedentary Behaviour, and Adiposity in Young Adult South African Women Using Structural Equation Modelling. Int J Environ Res Public Health. 2018;14(10):1271. https://doi.org/10.3390/ijerph14101271
https://doi.org/10.3390/ijerph14101271...
, 2424 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, et al. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med. 2015;162(2):123-32. https://doi.org/10.7326/M14-1651
https://doi.org/10.7326/M14-1651...
, 2525 Peixoto HGE, Vasconcelos IAL, Sampaio ACM, Ito MK. Effects of antidepressant medications on body weight. Rev Nutr. 2008;21(3):341-8. https://doi.org/10.1590/S1415-52732008000300009
https://doi.org/10.1590/S1415-5273200800...
, 2626 Florêncio RS, Moreira TMM. Clinical-behavioral factors associated with overweight in young adults students. Rev Enferm UERJ. 2019;27(e38673):1-6. https://doi.org/10.12957/reuerj.2019.38673
https://doi.org/10.12957/reuerj.2019.386...
, 2727 Duarte FM, Almeida SDS, Martins KA. Away-from-home food consumption of students from some courses in the health area of a private university. Mundo Saúde. 2013;37(3):288-98. https://doi.org/10.15343/0104-7809.2013373288298
https://doi.org/10.15343/0104-7809.20133...
, 2828 Aguilar-Palacio I, Carrera-Lasfuentes P, Rabanaque MJ. Self-rated health and educational level in Spain: trends by autonomous communities and gender (2001-2012). Gaceta Sanit. 2015;29(1):37-43. https://doi.org/10.1016/j.gaceta.2014.07.004
https://doi.org/10.1016/j.gaceta.2014.07...
, 2929 Silva DA, Felisbino-Mendes MS, Pimenta AM, Gazzinelli A, Kac G, Velásquez-Meléndez G. Metabolic disorders and adiposity in a rural population. Arq Bras Endocrinol Metab. 2008;52(3):489-98. https://doi.org/10.1590/S0004-27302008000300009
https://doi.org/10.1590/S0004-2730200800...
). Thirteen clinical antecedents and 7 clinical consequences were identified (Chart 1).

Chart 1
Clinical antecedents and consequences of overweight included in the Mid-range theories (MRT)

The antecedents and consequences of overweight in adolescents and young adults were used to create a pictorial illustrated diagram. This pictogram was based on the rain cycle to trace the influence of clinical antecedents that predispose to the installation of overweight and its clinical manifestation through the consequences (Figure 2).

Figure 2
Pictogram of clinical antecedents and consequences of overweight included in the Mid-range theories (MRT)

Water represents the human being adolescent or young adult individual. This individual, like water, is subject to internal and external stimuli that cause a change in its initial physical state. A frequently observed case is the rain cycle. In this cycle, water needs the influence of the sun to evaporate, in the same way that the individual develops a relationship with the clinical history of excess weight. The cloud, in the pictogram, is responsible for holding a factor that was not common to it (water), in a similar way to how an individual holds excess weight. When this occurs, the cloud manifests its change through rain (clinical consequences), this being the final stage of the cycle. It is noteworthy that the final phase of the rainy cycle and the clinical consequences of excess weight are easier to detect during the establishment of health interventions.

In this sense, to explain overweight in adolescents and young adults, it was considered that the individual (water) is influenced by several stimuli (the sun) that can cause the occurrence of a condition overweight (the cloud), manifested through clinical consequences (the rain). Therefore, clinical antecedents and clinical consequences act cyclically on the individual, impacting their relationship with overweight.

Next, 11 propositions were elaborated to elucidate the causal relationships between the clinical antecedents and consequences of overweight, as shown below.

  1. The finding of overweight in the clientele will depend directly on the individual’s body weight, age, and height.

  2. Etiological factors of overweight can be divided into modifiable and non-modifiable. The first axis encompasses poor sleep quality, sedentary lifestyle, and unhealthy eating habits. The second includes factors such as personal or family history of overweight, menarche before the age of 12, and female sex.

  3. External factors such as active academic relationship and emotional disturbance directly interfere with weight gain in adolescents and young adults, as the intensity of daily activities leads this clientele to consume high-calorie and easily accessible foods.

  4. The modernization process directly influences overweight rates in the population since factors such as living in an urban area and having a low household income are clinical antecedents of overweight in adolescents and young adults.

  5. The modernization process directly influences overweight rates in the population since factors such as living in an urban area and having a moderate household income are clinical antecedents of overweight in adolescents and young adults.

  6. The individual’s lifestyle directly impacts the predisposition to overweight. The presence of factors such as sedentary lifestyle, alcoholism, inadequate lifestyle habits and use of obesogenic drugs (clinical antecedents) justifies this fact.

  7. The family environment and personal history directly influence the predisposition to be overweight since offering foods with high caloric content and low nutritional value at home generates unhealthy eating habits and excess weight.

  8. One of the main consequences of overweight is mental health issues, especially in the female universe.

  9. Adolescents and young adults with overweight tend to be dissatisfied with their body image, as they overvalue the view of a thin body and seek social acceptance. This fact is justified by the neuropsychological development of this stage of life and leads them to adhere to restrictive weight control behaviors, sometimes putting their health at risk.

  10. Metabolic disorders, especially dyslipidemia, diabetes mellitus, and increased blood pressure are some clinical manifestations of excess weight in adolescents and young adults that deserve special attention, as they increase the risk of premature death.

  11. Overweight adolescents and adults negatively perceive health, as they associate an overweight body with a non-aesthetically pleasing and clinically ill body.

Finally, 12 causal relationships involving the etiological factors were established according to Lopes, Silva & Herdman’s(11 Lopes MVO, Silva VM, Herdman TH. Causation and validation of nursing diagnoses: a middle range theory. Int J Nurs Knowl. 2017;28(1):53–9. https://doi.org/10.1111/2047-3095.12104
https://doi.org/10.1111/2047-3095.12104...
) (2015) framework. Thus, the present MRT has 3 precipitating factors: sedentary lifestyle, unhealthy eating habits, and poor sleep quality, 3 predisposing factors: emotional disturbance, personal or family history of overweight, and active academic relationship, 2 disabling factors: alcoholism and use of obesogenic drugs, and 5 reinforcing factors: menarche before the age of 12, low household income, living in urban areas, stable relationship, and female sex.

DISCUSSION

Nursing is constantly developing knowledge to understand the changing health needs of individuals and the community(22 Roy C. Generating middle range theory: from evidence to practice. New York: Springer; 2014.). The development of MRTs is observed in different branches of nursing: health education(3030 Sanford RC. Caring through relation and dialogue: a nursing perspective for patient education. ANS Adv Nurs Sci. 2000;22(3):1-15. https://doi.org/10.1097/00012272-200003000-00002
https://doi.org/10.1097/00012272-2000030...
), chronic pain(3131 Dunn KS. Toward a middle-range theory of adaptation to chronic pain. Nurs Sci Q. 2004;17(1):78-84. https://doi.org/10.1177/0894318403260474
https://doi.org/10.1177/0894318403260474...
), mental health(3232 Noiseux S, Ricard N. Recovery as perceived by people with schizophrenia, family members and health professionals: a grounded theory. Int J Nurs Stud. 2008,45(8):1148-62. https://doi.org/10.1016/j.ijnurstu.2007.07.008
https://doi.org/10.1016/j.ijnurstu.2007....
), intensive care(3333 Davidson JE. Facilitated sensemaking: a strategy and new middle-range theory to support families of intensive care unit patients. Crit Care Nurse. 2010;30(6):28-39. https://doi.org/10.4037/ccn2010410
https://doi.org/10.4037/ccn2010410...
), death and dying(3434 Dobratz MC. Toward development of a middle-range theory of psychological adaptation in death and dying. Nurs Sci Q. 2011;24(4):370-6. https://doi.org/10.1177/0894318411419212
https://doi.org/10.1177/0894318411419212...
). However, the absence of studies on the nursing diagnosis overweight, and in the population of adolescents and young adults is highlighted.

The MRT developed in the present study was performed with a final sample of 28 articles. It is important to highlight that no studies were found that addressed the theme of the nursing diagnosis overweight and the development of a MRT, demonstrating that these studies are still incipient. This reality is a current problem and corroborates with previous research in different areas(3535 Fernandes MICD. Construction and validation of the nursing diagnosis risk for excessive fluid volume based on a mid-range theory[Tese] [Internet]. 2018[cited 2023 Sep 1]. UFRN. Available from: https://repositorio.ufrn.br/bitstream/123456789/26225/1/Constru%c3%a7%c3%a3ovalida%c3%a7%c3%a3odiagn%c3%b3stico_Fernandes_2018.pdf
https://repositorio.ufrn.br/bitstream/12...
, 3636 Lemos LA. Validation of the nursing diagnosis dysfunctional response to ventilatory weaning[Tese] [Internet]. 2019[cited 2023 Sep 1]. UFC. Available from: https://repositorio.ufc.br/bitstream/riufc/42778/1/2019_tese_lalemos.pdf
https://repositorio.ufc.br/bitstream/riu...
, 3737 Barreiro RG, Cavalcante L P, Lopes MVO. Middle-Range theory for the nursing diagnosis of low self-efficacy in health. Rev Bras Enferm. 2020;73(5)e20190370. https://doi.org/10.1590/0034-7167-2019-0370
https://doi.org/10.1590/0034-7167-2019-0...
), as the lack of studies makes it difficult for new researchers to make the method robust and reliable.

Among the studies focused on the theme of overweight, it was noticed that most publications were from the medicine area to the detriment of nursing, with most studies coming from the European continent and being written in English. This fact is believed to be related to the high costs of research in the health area and the greater funding for research that this field and continent receive, which explains the review’s findings(3535 Fernandes MICD. Construction and validation of the nursing diagnosis risk for excessive fluid volume based on a mid-range theory[Tese] [Internet]. 2018[cited 2023 Sep 1]. UFRN. Available from: https://repositorio.ufrn.br/bitstream/123456789/26225/1/Constru%c3%a7%c3%a3ovalida%c3%a7%c3%a3odiagn%c3%b3stico_Fernandes_2018.pdf
https://repositorio.ufrn.br/bitstream/12...
).

Regarding the study designs, cross-sectional studies stood out (level VI evidence). Melnyk & Fineout-Overholt(3838 Melnyk BM, Fineout-Overholt E. Evidence-based practice in nursing & healthcare: a guide to best practice. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins; 2021.) (2011) state that the level of evidence from these studies is not strong, denoting the need for more rigorous studies.

The etiology of overweight is quite complex and has a multifactorial nature, involving biological, psychological and socioeconomic factors. It is known that the profound changes that have occurred in society, such as urbanization and the increase in production and consumption of processed foods, causing a sharp increase in sedentary lifestyle and consumption of ultra-processed foods, have contributed to the increase in overweight and obesity on a global scale(3939 Buennemeyer V. Obesity in childhood and adolescence: a real epidemic [Dissertação] [Internet]. 2019[cited 2023 Sep 1]. 17p. Available from: http://educapes.capes.gov.br/handle/1884/67973
http://educapes.capes.gov.br/handle/1884...
). These findings corroborated the clinical antecedents and clinical consequences listed in the present research.

Therefore, the consumption of foods with high energy density and rich in lipids and simple carbohydrates alone cannot explain the exponential increase in this clinical condition, and it is essential to investigate other behavioral and socioeconomic factors, such as the rate of physical activity and income. individual’s family(4040 Tavares CLC, Cesário CKL, Pinheiro IO, Sampaio Filho JG, Fernandes CG, Cruz AMGS. Perfil epidemiológico da obesidade e sobrepeso nos últimos dez anos no Brasil. Contrib Cienc Soc. 2023;16(11):26899–907. https://doi.org/10.55905/revconv.16n.11-128
https://doi.org/10.55905/revconv.16n.11-...
).

A relevant association that can be made is that overweight in adolescents and young adults is directly related to the lack of physical activity. Recent studies state that the high amount of time dedicated to low-intensity activities, such as watching television, using the computer and playing video games, is directly related to the increased risk of being overweight among adolescents and young adults(4141 Flynn MAT, McNeil DA, Mutasingwa D, Wu M, Ford C, Tough SC. Reducing obesity and related chronic disease risk in children and youth: a synthesis of evidence with ‘best practice’ recommendations. Obes Rev. 2006;7(suppl1):7-66. https://doi.org/10.1111/j.1467-789X.2006.00242.x
https://doi.org/10.1111/j.1467-789X.2006...
, 4242 Araújo JCL, Matos AGM, Nunes MILB, Knackfuss MI. The prevalence of factors associated with overweight/obesity in sedentary adolescents compared to adolescents who practice physical activity: integrative review. Braz J Health Rev. 2022;5(2):6025–37. https://doi.org/10.34119/bjhrv5n2-179
https://doi.org/10.34119/bjhrv5n2-179...
).

It should also be noted that encouraging excessive wakefulness, based on social and recreational life, early school hours, academic tasks and family demands, can lead to fatigue and a direct reduction in physical activity levels. The lower energy expenditure resulting from poor sleep quality facilitates the accumulation of body fat(4343 Lima TR, Sousa GR, Castro, JAC, Silva DAS. Simultaneous presence of excess weight and insufficient hours sleep in adolescents: prevalence and related factors. J Hum Growth Dev. 2017;27(2):148-57. https://doi.org/10.7322/jhgd.115987
https://doi.org/10.7322/jhgd.115987...
).

Regarding socioeconomic factors, an increase in overweight is observed in low-income individuals living in urban regions. Within the criteria for food consumption in the group, there was a close relationship between food and socioeconomic conditions, which is often guided by the monetary value of foodstuffs. In other words, the price of the items defines the food selection(2222 Ng M, Fleming T, Robinson M, Thomson B, Graetz N, Margono C, et al. Global, regional, and national prevalence of overweight and obesity in children and adults during 1980–2013: a systematic analysis for the Global Burden of Disease Study 2013. Lancet. 2014;384(9945):766-81. https://doi.org/10.1016/S0140-6736(14)60460-8
https://doi.org/10.1016/S0140-6736(14)60...
).

In this context, food underconsumption occurs, with the search for a feeling of satiety and the fight against hunger through the consumption of bread and sugary infusions. Poor living conditions require the selection of items with high calorie content and low nutritional value(4444 Ferreira VA, Magalhães R. Obesity and poverty: the apparent paradox - a study among women from the Rocinha slum, Rio de Janeiro, Brazil. Cad Saúde Pública. 2005;21(6):1792-800. https://doi.org/10.1590/S0102-311X2005000600027
https://doi.org/10.1590/S0102-311X200500...
).

In addition to socioeconomic and behavioral factors, there are also biological factors. In this aspect, female sex or menarche before the age of 12 stands out. The accumulation of fat in the female population is mainly due to the secretion of sex hormones that increase adiposity and appetite. The earlier the exposure to estrogen and other adrenal steroids, the greater the chance of being overweight(1919 Ataey A, Jafarvand E, Adham D, Moradi-Asl E. The Relationship Between Obesity, Overweight, and the Human Development Index in World Health Organization Eastern Mediterranean Region Countries. J Prev Med Public Health. 2020;53(2):98-105. https://doi.org/10.3961/jpmph.19.100
https://doi.org/10.3961/jpmph.19.100...
).

As for psychological factors, the role of food as an element of comfort for overcoming dilemmas, tensions and daily responsibilities stands out. Inadequate appetite control and binge eating induced by daily stress seem to make it difficult to control body weight(55 Associação Brasileira para o estudo da obesidade e da síndrome metabólica. Diretrizes Brasileiras de Obesidade [Internet]. 4ª ed. São Paulo: Abeso; 2016[cited 2023 Sep 1]. 188 p, http://www.abeso.org.br/uploads/downloads/92/57fccc403e5da.pdf
http://www.abeso.org.br/uploads/download...
).

Once in possession of these symptoms, the individual tends to express guilt for not reaching the desired weight and, on a large scale, psycho-emotional disorders. Among the main consequences of excess weight on the psychological health of adolescents and young adults, the impairment of mental health stands out, evidenced by negative self-perception of health, dissatisfaction with body image and abuse of restrictive diets(1919 Ataey A, Jafarvand E, Adham D, Moradi-Asl E. The Relationship Between Obesity, Overweight, and the Human Development Index in World Health Organization Eastern Mediterranean Region Countries. J Prev Med Public Health. 2020;53(2):98-105. https://doi.org/10.3961/jpmph.19.100
https://doi.org/10.3961/jpmph.19.100...
, 2020 Rodríguez-Arauz G, Ramírez-Esparza N, Smith-Castro V. Food attitudes and well-being: the role of culture. Appetite. 2016;105:180-8. https://doi.org/10.1016/j.appet.2016.05.019
https://doi.org/10.1016/j.appet.2016.05....
).

Thus, given the multicausal nature of excess weight, the role of the professional nurse as a conciliator between the health demands and the individual’s daily life stands out, based on specialized and targeted consultations. History taking and physical examination are essential to prevent or identify excess weight, as well as plan care, evaluating the client’s signs and symptoms Health promotion stands out, with the development of health education at school, as a form of intervention(4545 Silva J P, Garanhani ML, Peres AM. Systematization of Nursing Assistance in graduation: a look under complex thinking. Rev Latino-Am Enfermagem. 2015;23(1):59-66. https://doi.org/10.1590/0104-1169.0096.2525
https://doi.org/10.1590/0104-1169.0096.2...
).

Furthermore, the development of MRT of the nursing diagnosis will provide nurses with greater knowledge about the main concepts of this phenomenon, which are the attributes, antecedents and consequences. It is also important to highlight the existence of theoretical propositions and the possibility of them being tested empirically. All of this contributes to bringing theory and practice closer together.

Study limitations

As a limitation of this study, we can point out the use of only open access articles in the integrative literature review, which may have contributed to the small sample size.

Contributions to nursing knowledge

This middle-range theory makes an important contribution to furthering the research on overweight in adolescents and young adults, since it provides a useful tool for nursing professionals to efficiently detect signs and symptoms on clinical practices. Therefore, the results of this theory can provide the basis for moving forward with new stages of research to empirically prove the identified concepts, in order to proceed with validation of content and clinical validation.

CONCLUSION

The construction of the mid-range theory of overweight in adolescents and young adults was based on 28 articles from an integrative literature review. Three essential attributes, 13 antecedents, and 7 consequences of the studied nursing diagnosis were identified, which were conceptually and operationally defined. An illustrated pictogram was created to facilitate understanding, demonstrating the influence of these indicators. Furthermore, 12 propositions and 13 causal relationships were created.

The development of a MRT based on the nursing diagnosis overweight proved useful and able to guide interventions to change unhealthy conditions and favor nursing care, reinforcing the cyclical nature of the disease. This theoretical-causal validity can be used by nurses to confirm nursing diagnosis overweight in adolescents and young adults.

  • FUNDING
    This work was supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES/Brazil and the Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq/Brazil.

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Edited by

EDITOR IN CHIEF: Antonio José de Almeida Filho
ASSOCIATE EDITOR: Márcia Ferreira

Publication Dates

  • Publication in this collection
    14 June 2024
  • Date of issue
    2024

History

  • Received
    24 Sept 2023
  • Accepted
    02 Feb 2024
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