SciELO - Scientific Electronic Library Online

vol.134 issue1The role of diagnostic laparoscopy in gynecologyInfluence of type 2 diabetes mellitus on liver histology among morbidly obese individuals. A cross-sectional study author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Sao Paulo Medical Journal

Print version ISSN 1516-3180On-line version ISSN 1806-9460


ALMEIDA, Renan Moritz Varnier Rodrigues de; CATELANI, Fernanda; FONTES-PEREIRA, Aldo José  and  GAVE, Nárrima de Souza. Retractions in general and internal medicine in a high-profile scientific indexing database. Sao Paulo Med. J. [online]. 2016, vol.134, n.1, pp.74-78.  Epub Aug 21, 2015. ISSN 1806-9460.


Increased frequency of retractions has recently been observed, and retractions are important events that deserve scientific investigation. This study aimed to characterize cases of retraction within general and internal medicine in a high-profile database, with interest in the country of origin of the article and the impact factor (IF) of the journal in which the retraction was made.


This study consisted of reviewing retraction notes in the Thomson-Reuters Web of Knowledge (WoK) indexing database, within general and internal medicine.


The retractions were classified as plagiarism/duplication, error, fraud and authorship problems and then aggregated into two categories: "plagiarism/duplication" and "others." The countries of origin of the articles were dichotomized according to the median of the indicator "citations per paper" (CPP), and the IF was dichotomized according to its median within general and internal medicine, also obtained from the WoK database. These variables were analyzed using contingency tables according to CPP (high versus low), IF (high versus low) and period (1992-2002 versus 2003-2014). The relative risk (RR) and 95% confidence interval (CI) were estimated for plagiarism/duplication.


A total of 86 retraction notes were identified, and retraction reasons were found for 80 of them. The probability that plagiarism/duplication was the reason for retraction was more than three times higher for the low CPP group (RR: 3.4; 95% CI: [1.9-6.2]), and similar results were seen for the IF analysis.


The study identified greater incidence of plagiarism/duplication among retractions from countries with lower scientific impact.

Keywords : Databases, Bibliographic; Bibliometrics; Retraction of publication; Scientific misconduct; Journal impact factors.

        · abstract in Portuguese     · text in English     · English ( pdf )