Group B streptococci colonization in pregnant women: risk factors and evaluation of the vaginal flora


Autoria(s): Rocchetti, Talita T.; Marconi, Camila; Rall, Vera L. M.; Borges, Vera Therezinha Medeiros; Corrente, José Eduardo; da Silva, Marcia
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/04/2011

Resumo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Processo FAPESP: 06/55307-0

Processo FAPESP: 07/51704-7

To determine the prevalence of group B streptococci (GBS) in our population, and to assess the association between risk factors and vaginal flora with maternal rectovaginal colonization.Samples were obtained from 405 patients between 35 and 37 weeks of gestation. Swabs from the vaginal and perianal regions were cultured in Todd Hewitt and subcultured in blood agar. Colonies suggestive of GBS were submitted to catalase and CAMP test. The vaginal flora was evaluated on Gram stain vaginal smears. Socio-demographic and obstetric data were obtained by designed form. Considering maternal GBS colonization as the response variable, a logistic regression model was fitted by the stepwise method with quantitative and qualitative explanatory variables.The prevalence of GBS colonization was 25.4%. The most frequent vaginal flora abnormalities were cytolytic vaginosis (11.3%), followed by bacterial vaginosis (10.9%), candidosis (8.2%) and intermediate vaginal flora II (8.1%). Logistic regression analysis revealed that maternal age, number of sexual intercourse/week, occurrence of previous spontaneous abortion, presence of candidosis and cytolytic vaginosis were associated with streptococcal colonization.The prevalence of GBS is high in pregnant women and is associated with sexual intercourse frequency, previous spontaneous abortion and the presence of candidosis or cytolytic vaginosis.

Formato

717-721

Identificador

http://dx.doi.org/10.1007/s00404-010-1439-8

Archives of Gynecology and Obstetrics. Heidelberg: Springer Heidelberg, v. 283, n. 4, p. 717-721, 2011.

0932-0067

http://hdl.handle.net/11449/12194

10.1007/s00404-010-1439-8

WOS:000288254200007

Idioma(s)

eng

Publicador

Springer Heidelberg

Relação

Archives of Gynecology and Obstetrics

Direitos

closedAccess

Palavras-Chave #Group B streptococci #Pregnancy #Vaginal flora #Risk factors
Tipo

info:eu-repo/semantics/article