Prevalence of rectovaginal colonization by group B Streptococcus in pregnant women seen at prenatal care program of a health organization

Abstract

Objective: To evaluate the prevalence of group B Streptococci in pregnant women of a corporate health program, as well as the epidemiological correlations. Methods: This retrospective study used medical records of patients who participated of the prenatal care program at a private hospital in the city of São Paulo (SP), Brazil, from 2015 to 2016. Those who abandoned the program or had incomplete data in their medical records were excluded. Quantitative variables were described by means, standard deviations, median, minimal and maximal values. Parity and socioeconomic status were described by absolute frequency and percentages. We used logistic regression models in the software (SPSS) to analyze correlations of variables according to vaginal-rectal culture, considering a 95%CI and p-values. Variables were age, number of pregnancies, weight gain in pregnancy and gestational age at delivery. Results: A total of 347 medical records were included, and after applying the exclusion criteria, 287 medical records composed the final sample. Patients' age ranged between 17 and 44 years. Mean age was 30.6 years, 67 patients had positive result for group B Streptococcus (prevalence of 23.3%; 95%CI: 18.7-28.5). Conclusion: Considering the high prevalence of group B Streptococcus in our service, the antibiotic prophylaxis strategy based on rectovaginal culture screening approach seems to be cost-effective.

Adherence to screening and management guidelines of maternal Group B Streptococcus colonization in pregnancy

“…The examination of GBS colonization data across the five hospitals revealed an overall rate of 21.70% which was similar to average rates in international research (Edwards et al, 2019;Jisuvei et al, 2020;Ramesh Babu et al, 2017;Szylit et al, 2020) and consistent with results of previous Australian studies (Braye et al, 2019;Furfaro et al, 2019;Moorhead et al, 2019). No studies were located to relate findings of the current study in relation to the different models of care (non-and midwifery led care).…”

Association between Parity and Preterm Birth—Retrospective Analysis from a Single Center in Poland

“…Furthermore, we observed that primiparas who had a preterm delivery more often received antibiotic prophylaxis due to the colonization of the genital tract by Streptococcus agalactiae. This is consistent with the findings by Szylit et al, who reported that primiparas were more frequently positive for Streptococcus agalactiae [ 36 ].…”

Prevalência Da Colonização Por Estreptococo Do Grupo B Em Gestantes Atendidas Em Um Hospital Público

“…A caracterização das gestantes com colonização por EGB foi semelhante a apresentada em outro estudo que encontrou maior positividade entre gestantes com idade de 26 a 35 anos, em 'outro estado civil', não tabagistas nem etilistas, com um parceiro sexual e gravidez não programada (24) . Outro estudo realizado também em São Paulo não mostrou associação entre fatores de risco socioeconômicos, ponderais ou demográficos e a colonização vaginal pelo EGB (12) .…”

“…No Brasil, existem poucos trabalhos que evidenciam a prevalência da colonização por EGB em gestantes. Em estudo retrospectivo realizado em São Paulo com 287 gestantes, 67 apresentaram resultado positivo para estreptococo do grupo B, o que correspondeu a prevalência de 23,3% (12) .…”