Descriptive Study of the <i>Brazilian Journal of Transplantation</i>: A Bibliometric Analysis

Cerqueira, Bruno Pellozo; Paim, Thays Sellan; Miyahara, André Kiyoshi; Vizzuso-Oliveira, Alexandre; Garcia, Lara Baladi; Silva, Denis Campos; Boin, llka de Fátima Santana Ferreira; Rangel, Érika Bevilaqua

doi:10.53855/bjt.v27i1.579_ENG

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Brasil

Brazilian Journal of Transplantation

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Brasil

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ORIGINAL PAPER • Braz. J. Transplant. 27 • 2024 • https://doi.org/10.53855/bjt.v27i1.579_ENG copy

Descriptive Study of the Brazilian Journal of Transplantation: A Bibliometric Analysis

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Introduction:

Organ and tissue transplantation plays a crucial role in treating of advanced chronic diseases. In Brazil, this field has experienced significant growth driven by scientific research and an increase in the number of procedures. The Brazilian Journal of Transplantation (BJT) holds a pivotal role in disseminating knowledge in this research area.

Objectives:

To conduct a comprehensive bibliometric analysis of articles published in the BJT to identify trends and characteristics of articles related to organ and tissue transplantation.

Methods:

A bibliometric analysis was conducted on 433 articles related to organ and tissue transplantation published in the BJT from 2005 to 2023. Data were collected and analyzed regarding the year of publication, number of authors, sex of the first and last author, country and region of the first author, type of transplantation addressed, type of study, and methodology employed.

Results:

A total of 433 articles related to organ and tissue transplantation in the BJT were analyzed. Articles related to liver transplantation were the most prevalent (29.1%) followed by renal transplantation (28.6%). Original studies were the most frequent (58.4%) followed by reviews (21.7%). Among original studies, retrospective observational studies accounted for 46.6%. Regarding sex representation, women were the first authors in 59.6% of publications and the last authors in 46.7%. The Southeast Region represented 53.2% of all publications by Brazilian authors, with the state of São Paulo accounting for 42.7% of national publications.

Conclusion:

Our study offers valuable insights into the evolution and distribution of transplant research in Brazil. It highlights areas necessitating attention and intervention, such as promoting of inter-regional collaborations, investing in infrastructure in less developed areas, and initiatives to ensure gender equity in medical research.

Descriptors
Bibliometric; Transplantation; Journal; Sex Disparity; Authorship: Geographical Differences

Demographic data		Liver	Kidney	Organ retrieval/donation	Tissues	Pancreas/kidney	Heart	All
Number of publications (n, %)		126 (29.1)	124 (28.6)	112 (25.8)	56 (12.9)	10 (2.4)	5 (1.2)	433 (100.0)
Number of authors (mean ± SD)		6.1 ± 3.6	6.4 ± 3.1	4.2 ± 2.9	4.8 ± 3.5	6.9 ± 3.7	6.4 ± 3.4	5.5 ± 3.2
Type of study (n, %)
	Original	70 (55.6)	70 (56.5)	69 (61.6)	35 (62.5)	5 (50.0)	4 (80.0)	253 (58.4)
	Review	32 (25.4)	25 (20.2)	26 (23.2)	9 (16.1)	2 (20.0)	0 (0.0)	94 (21.7)
	Case report	21 (16.7)	27 (21.8)	2 (1.8)	11 (19.6)	2 (20.0)	1 (20.0)	64 (14.8)
	Others	3 (2.4)	2 (1.6)	15 (13.4)	1 (1.8)	1 (10.0)	0 (0.0)	22 (5.1)
Methodology of the review (n, %)
	Narrative	31 (96.9)	25 (100.0)	26 (100.0)	9 (100.0)	2 (100.0)	0 (0.0)	93 (98.9)
	Systematic	1 (3.1)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	1 (1.1)
Methodology of the original studies (n, %)
	Retrospective observational	34 (48.5)	46 (65.7)	19 (27.5)	13 (37.1)	4 (80.0)	2 (50.0)	118 (46.6)
	Prospective observational	14 (20.0)	5 (7.1)	1 (1.4)	0 (0.0)	0 (0.0)	0 (0.0)	20 (7.9)
	Cross-sectional	15 (21.4)	15 (21.4)	28 (40.5)	5 (14.2)	0 (0.0)	2 (50.0)	65 (25.6)
	Non-randomized clinical	1 (1.4)	0 (0.0)	0 (0.0)	1 (2.8)	0 (0.0)	0 (0.0)	2 (0.8)
	Randomized clinical	0 (0.0)	1 (1.4)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)	1 (0.4)
	Experimental	4 (5.7)	1 (1.4)	2 (2.8)	12 (34.2)	1 (20.0)	0 (0.0)	20 (7.9)
	Others	2 (3.0)	2 (3.0)	19 (27.8)	4 (11.7)	0 (0.0)	0 (0.0)	27 (10.8)
Gender of the first author (n, %)
	Male	55 (43.7)	50 (40.3)	30 (26.8)	29 (51.8)	7 (70.0)	4 (80.0)	175 (40.4)
	Female	71 (56.3)	74 (59.7)	82 (73.2)	27 (48.2)	3 (30.0))	1 (20.0)	258 (59.6)
Gender of the last author (n, %)
	Male	71 (56.8)	65 (52.4)	40 (38.8)	36 (67.9)	9 (90.0)	3 (60.0)	224 (53.3)
	Female	54 (43.2)	59 (47.6)	63 (61.2)	17 (32.1)	1 (10.0)	2 (40.0)	196 (46.7)
First author from Brazil, divided by region (n, %)		122 (96.8)	119 (96.0)	109 (97.3)	55 (98.2)	9 (90.0)	5 (100.0)	419 (96.8)
	Southeast	59 (49.4)	65 (54.6)	54 (49.5)	37 (67.3)	4 (44.4)	4 (80.0)	223 (53.2)
	South	21 (17.2)	22 (18.5)	24 (22.0)	12 (21.8)	5 (55.6)	0 (0.0)	84 (20.0)
	Midwest	2 (1.6)	5 (4.2)	3 (2.8)	0 (0.0)	0 (0.0)	0 (0.0)	10 (2.4)
	Northeast	36 (29.5)	23 (19.3)	24 (22.0)	5 (9.1)	0 (0.0)	1 (20.0)	89 (21.2)
	North	4 (3.3)	4 (3.4)	4 (3.7)	1 (1.8)	0 (0.0)	0 (0.0)	13 (3.1)

Demographic Data		2004-2014	2015-2023	p-value
Number of publications (n, %)		249 (57.5)	184 (42.5)
Number of authors (mean ± SD)		5.5 ± 3.1	5.5 ± 3.4	0.662
Type of transplant (n, %)				0.662
	Liver	53 (21.3)	73 (39.7)	< 0.001
	Kidney	73 (29.3)	51 (27.7)	0.689
	Pancreas/kidney	10 (4.0)	0.0	0.005
	Heart	5 (2.0)	0.0	0.057
	Tissue	43 (17.3)	13 (7.1)	0.001
	Organ retrieval/donation	65 (26.1)	47 (25.5)	0.920
Type of study (n, %)
	Original	157 (63.1)	96 (52.2)	0.005
	Review	42 (16.9)	52 (28.3)	0.423
	Case report	34 (13.7)	30 (16.3)	0.133
	Others	16 (6.4)	6 (13.3)	0.133
Gender of the first author (n, %)
	Male	110 (44.2)	65(35.3)	0.064
	Female	139 (55.8)	119 (64.7)
Gender of the last author (n, %)
	Male	131 (54.6)	93 (51.7)	0.553
	Female	109 (45.4)	87 (48.3)
First author from Brazil, divided by region (n, %)
	Southeast	139 (55.9)	84 (45.7)	0.035
	South	53 (21.3)	31 (16.8)	0.230
	Midwest	1 (0.4)	9 (4.9)	0.001
	Northeast	42 (16.9)	47 (25.5)	0.027
	North	9 (3.6)	4 (2.2)	0.368

Associação Brasileira de Transplante de Órgãos Avenida Paulista, 2.001 - 17° andar Conj. 1.704/1.707, Cerqueira César - CEP: 01311-300, Tel: (55) 11 98243 - 3901 - São Paulo - SP - Brazil
E-mail: abto@abto.org.br

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[1] * Corresponding author: erikabr@uol.com.br