Bibliometric analysis and conversion rate of abstracts presented at the Brazilian Congress of Coloproctology into publication of full articles

SAMARTINE JUNIOR, HUGO; PAIVA, DANIEL FERREIRA; GRACITELLI, GIOVANNA BERTAZZOLA; MAZZINI, LUCAS ROSASCO; LEVY, NICOLE GOLDENBERG; AQUINO, JOSE LUIS BRAGA; MENDES, ELISA DONALISIO TEIXEIRA

doi:10.1590/0100-6991e-20233560-en

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Original article • Rev. Col. Bras. Cir. 50 • 2023 • https://doi.org/10.1590/0100-6991e-20233560-en copy

Bibliometric analysis and conversion rate of abstracts presented at the Brazilian Congress of Coloproctology into publication of full articles

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Introduction:

the presentation of research at a congress is an interesting means for scientific dissemination, but only with publication in an indexed journal does the data become accessible and disseminated. The conversion rate in published articles of abstracts presented at congresses is an indicator to assess the scientific quality of those events. The aim of this study is to evaluate bibliometric characteristics of abstracts presented at the Brazilian Congress of Coloproctology and to determine the factors that affect publication rates.

Methods:

Retrospective evaluation of all abstracts presented at the Brazilian Congresses of Coloproctology from 2015 to 2019. Multiple databases were analyzed to estimate the conversion rate of the presented papers, as well as variables associated with the conversion of abstracts into full manuscripts through bivariate analysis and multivariate variables of these predictors.

Results:

1756 abstracts were analyzed. Most studies are retrospective, series or case reports, and even personal experience. The conversion rate was 6.9%. The presence of statistical analysis was twice as high for published abstracts as for unpublished ones.

Conclusion:

the data presented demonstrate a low scientific productivity of the specialty, since the research carried out is, for the most part, not published as complete manuscripts. The predictors of publication of abstracts were: multicenter studies, studies with statistical analysis, study designs with a higher level of evidence and studies awarded by the congress.

Keywords:
Colorectal Surgery; Bibliometrics; Meeting Abstracts; Publications

Variables	Not published		Published		Total		p-value
	n	%	n	%	n	%
Category
Oral	512	31.3	75	62	587	33.4	<0.001
Poster	1.123	68.7	46	38	1.169	66.6
Multicentric
No	1504	92	103	85.8	1.607	91.6	0.019
Yes	131	8	17	14.2	148	8.4
University center
No	657	40.20%	50	41.30%	707	40.30%	0.805
Yes	978	59.80%	71	58.70%	1.049	59.70%
Awarded
No	890	98.9	84	93.3	974	98.4	<0.001
Yes	10	1.1	6	6.7	16	1.6
Presence of statistical analysis
No	538	68.3	52	50.9	590	66.3
Yes	249	31.7	50	49.1	299	33.7
Presence of women
No	91	7.4	21	24.8	112	8.4
Yes	1.140	92.6	84	75.2	1.224	91.6
Presented at previous congresses
No	1.592	97.40%	105	86.80%	1.697	96.60%
Yes	43	2.60%	16	13.20%	59	3.40%
Number of authors
1-3	91	5.60%	13	10.70%	104	5.90%
4-5	185	11.30%	12	9.90%	197	11.20%
≥6	1.359	83.10%	96	79.30%	1.455	82.90%
Area
Colonoscopy	97	5.90%	4	3.30%	101	5.80%	0.142
Benign Anorectal Diseases	180	11.00%	17	14.00%	197	11.20%
Pelvic floor diseases/Intestinal and Anorectocolic Physiology	130	8.00%	12	9.90%	142	8.10%
Inflammatory Bowel Diseases	255	15.60%	15	12.40%	270	15.40%
Malignant and premalignant diseases of the colon/ rectum and anus	558	34.10%	44	36.40%	602	34.30%
Sexually Transmitted Diseases	32	2.00%	2	1.70%	34	1.90%
Experimental Studies in Coloproctology	28	1.70%	6	5.00%	34	1.90%
Miscellaneous	355	21.70%	21	17.40%	376	21.40%
Variables	Not published		Published		Total		p-value
	n	%	n	%	n	%
Study design
RCT	4	0.2	0	0	4	0.2	<0.001
Experimental studies	40	2.4	11	9.1	51	2.9
Others	23	1.4	1	0.8	24	1.4
Prospective	188	11.5	39	32.2	227	12.9
Case report	848	51.9	19	15.7	867	49.4
Retrospective	482	29.5	44	36.4	526	30
Literature review without systematic review	4	0.2	0	0	4	0.2
Systematic review	7	0.4	1	0.8	8	0.5
Case series	39	2.4	6	5	45	2.6

Variables	n	%	p -value
Published
No	1,635	93.1	Ref.
Yes	121	6.9	<0.001
Time category
Previous	39	32.2	Ref.
<12 months	34	28.1	0.484
12-24 months	34	28.1	0.484
≥25 months	14	11.6	<0.001
Evidence level
Grade 2	41	33.9	0.503
Grade 3	46	38.0	Ref.
Grade 4	3	2.5	<0.001
Grade 5	31	25.6	0.038
Presence of statistical analysis
No	26	25.70	<0.001
Yes	75	74.30	Ref.
Citations from the published study
No	46	38.0	<0.001
Yes	75	62.0	Ref.
National / International
International	43	35.5	<0.001
Ref.
National	78	64.5
Access
Free access	104	86.0	Ref.
Free with login	3	2.5	<0.001
Paid	14	11.6	<0.001
Variables	n	%	p -value
Index Base Category
1-3	8	6.6	<0.001
4-5	66	54.5	Ref.
≥6	44	36.4	0.005
Zero	3	2.5	<0.001
PubMed
No	60	49.6	0.898
Ref.
Yes	61	50.4
LILACS
No	54	44.6	0.095
Ref.
Yes	67	55.4
SciELO
No	58	47.9	0.52
Ref.
Yes	63	52.1
Web of science
No	97	80.2	Ref.
<0.001
Yes	24	19.8
Scopus
No	22	18.2	<0.001
Ref.
Yes	99	81.8
Language
Spanish	1	0.8	<0.001
English	98	81.0	Ref.
Portuguese	7	5.8	<0.001
Portuguese and English	15	12.4	<0.001
Number of authors
1-3	17	14.0	<0.001
4-5	21	17.4	<0.001
≥6	83	68.6	Ref.
Study design
Experimental studies	11	9.1	<0.001
Prospective	39	32.2	0.346
Case report	20	16.5	<0.001
Retrospective	46	38.0	Ref.
Literature review without systematic review	2	1.7	<0.001
Case series	3	2.5	<0.001

Journal name (Brazil)	Number of articles
Journal of Coloproctology	52
Diseases of the Colon & Rectum	8
ABCD: Brazilian Archives of Digestive Surgery	8
Gastroenterology Archives	6
Journal of the Brazilian College of Surgeons	5
Colorectal Disease	3
Brazilian Surgical Record	2
Clinics	2
International Journal of Radiology & Radiation Therapy	2
International Journal of Surgery Case Reports	2
Techniques in Coloproctology	2
Others	29

Variables	Published	Not published	p-value	Bivariate Analysis	p-value	Multivariate analysis
Category				RP		OR
Oral	75	512	<0.001	3.25 (2.32-4.54)	0.301	0.78 (0.48-1.25)
Poster	46	1,123
University center
Yes	71	978	0.805	0.96 (0.68-1.36)	0.722	0.92 (0.58-1.46)
No	50	657
Multicentric
Yes	17	131	0.019	1.79 (1.10-2.92)	0.013	2.21 (1.18-4.14)
No	103	1504
Awarded					-	-
Yes	6	10	<0.001	4.35 (2.11-8.96)
No	84	890
Presence of statistical analysis
Yes	50	249	<0.001	3.43 (2.47-4.76)	0.007	2.01 (1.21-3.31)
Variables	Published	Not published	p-value	Bivariate Analysis	p-value	Multivariate analysis
No	52	538
Published in previous congresses					-	-
Yes	16	43	<0.001	4.38 (2.76-6.97)
No	105	1,592
Low	80	1,409

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