Association of sex, sexual maturation, age group, economic class, and nutritional status with the different cutoff points of screen time in adolescents

Piola, Thiago Silva; Bacil, Eliane Denise Araújo; Pacífico, Ana Beatriz; Campos, Jhonatan Gritten; Silva, Michael Pereira da; Campos, Wagner de

doi:10.1590/1806-9304202200020008

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ORIGINAL ARTICLES • Rev. Bras. Saude Mater. Infant. 22 (2) • Apr-Jun 2022 • https://doi.org/10.1590/1806-9304202200020008 copy

Association of sex, sexual maturation, age group, economic class, and nutritional status with the different cutoff points of screen time in adolescents

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objectives:

to estimate the prevalence of adolescents’ screen time in three different scenarios and possible associations with gender, sexual maturation, age group, economic class, and nutritional status.

Methods:

a cross-sectional study conducted with a representative sample of 3,979 adolescents from Greater Curitiba. Screen time (television, computer, and video game) was self-reported and categorized as ≤2h/day, >2 to ≤4h/day, and >4h/day. Ordinal logistic regression tested the associations.

Results:

the sample consisted of adolescents of 14.60±1.88 years old, most girls (51.2%). The prevalence of screen time >4h/day was 89.3%. Girls (OR=0.61; CI95%=0.49-0.76) and the older age groups (“14 to 16 years” OR=0.29; CI95%=0.22-0.39, and “17 to 19 years” OR=0.11; CI95%=0.08-0.16) were less likely to be in the groups of higher screen time.

Conclusions:

screen time above four hours seems to be the most prevalent among adolescents. Older girls and teens are less likely to have higher screen time.

Key words:
Screen time; Age group; Social class; Nutritional status; Adolescent

	Overall		Screen time
	Overall		≤2h/day		>2 a ≤4h/day		>4h/day		p
	n	%	n	%	n	%	n	%
Overall	3979	100.0	342	8.6	84	2.1	3553	89.3
Sex
Male	1940	48.8	133	6.9^a	33	1.7^a ^b	1774	91.7^b	0.001
Female	2039	51.2	209	10.3^a	51	2.5^a ^b	1779	87.2^b
Sexual maturation
Pubescent	2982	74.9	246	8.2^a	62	2.1^a	2674	89.7^a	0.008
Prepubescent	118	3.0	3	2.5^a	1	0.9^a ^b	114	96.6^b
Postpubescent	879	22.1	93	10.6^a	21	2.4^a ^b	765	87.7^b
Age group (years)
11 - 13	1509	37.9	36	2.4^a	23	1.5^b	1450	96.1^c	0.001
14 - 16	2012	50.6	207	10.3^a	37	1.8^b	1768	87.9^b
17 - 19	456	11.5	99	21.6^a	24	5.2^a	335	73.2^b
Economic Class
High	446	11.2	34	7.6^a	9	2.0^a	403	90.4^a	0.305
Intermediate	2152	54.1	181	8.4^a	48	2.2^a	1923	89.4^a
Low	1381	34.7	127	9.2^a	27	2.0^a	1227	88.8^a
Nutritional Status
Normal weight	2760	69.4	240	8.7^a	57	2.1^a	2463	89.2 ^a	0.846
Low weight	129	3.2	7	5.4^a	1	0.8^a	121	93.8^a.
Overweight	702	17.6	68	9.7^a	14	2.0^a	620	88.3 ^a
Obese	388	9.8	27.0	7.0^a	12	3.1^a	349	89.9^a

	Unadjusted analysis						Adjusted analysis
	O1 x O2+O3			O1+O2 x O3			O1 x O2+O3			O1+O2 x O3
	OR	CI95 %		OR	CI95%		OR	CI9 5%		OR	CI9 5%
Sex
Male	1	-	-	-	-	-		-	-	-	-	-
Female	0.64	0.52	0.79	-	-	-	0.61	0.49	0.76	-	-	-
Sexual maturation
Pubescent	1	-	-	-	-	-	1	-	-	-	-	-
Prepubescent	4.35	1.18	13.73	-	-	-	1.94	0.68	5.54	-	-	-
Postpubescent	0.77	0.61	0.97	-	-	-	0.92	0.72	1.18	-	-	-
Age group (years)
11 - 13	1	-	-	1	-	-	1	-	-	1	-	-
14 - 16	0.29	0.22	0.39	0.19	0.13	0.30	0.29	0.22	0.39	0.20	0.13	0.30
17 - 19	0.11	0.08	0.15	-	-	-	0.11	0.08	0.16	-	-	-
Economy
Low	1	-	-	-	-	-	1	-	-	-	-	-
Intermediate	1.06	0.85	1.31	-	-	-	1.06	0.85	1.33	-	-	-
High	1.18	0.83	1.69	-	-	-	1.09	0.76	1.57	-	-	-
Body mass index
Obese	1	-	-	-	-	-	1	-	-	-	-	-
Eutrophic	0.91	0.65	1.30	-	-	-	1.12	0.78	1.60	-	-	-
Low weight	1.66	0.75	3.66	-	-	-	1.42	0.64	3.13	-	-	-
Overweight	0.83	0.56	1.24	-	-	-	0.98	0.65	1.49	-	-	-

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[1] Authors’ contribution

Piola TS carried out the study design, data collection, data analysis and interpretation, and manuscript preparation. Bacil EDA participated in data collection, data analysis and interpretation, and manuscript review. Pacífico AB and Campos JG participated in the elaboration of the manuscript. Silva MP participated in the study design, analysis and interpretation of data and approval of the final version of the manuscript. Campos W guided the research and participated in the approval of the final version of the manuscript. The authors declare no conflict of interest.