Group B Streptococcus carriers among HIV-1 infected pregnant women: prevalence and risk factors

European Journal of Obstetrics, Gynecology, and Reproductive Biology
Patrícia El BeituneAntonio A Nogueira

Abstract

The objective was to determine the frequency and risk factors of anogenital colonization by Streptococcus agalactiae (GBS) in pregnant women infected with human immunodeficiency virus type 1 (HIV-1). A prospective study was conducted on 207 pregnant women divided into two groups: HIV group (n=101) and a control group consisting of HIV-uninfected pregnant women (n=106) to assess regional colonization by GBS. Anal and vaginal swabs were collected and cultured in Todd-Hewitt broth, followed by a confirmatory test. For a control group with an anticipated proportion based on literature research of 10-30% and alpha=0.05, a sample size of 100 would have a power of 80% to detect a difference of 15% or greater with a study group. The mothers were studied in terms of frequency of anogenital colonization by GBS, maternal epidemiological data, and TCD4 lymphocyte counts. The results were analyzed using the chi(2)-test, Fisher's exact test and the Student's t-test, with the level of significance set at p<0.05. Twenty (19.8%) HIV-1-infected pregnant women were found to be colonized by GBS at between 35 and 37 weeks' gestation. In the control group, the prevalence of GBS was 14.1%. No significant increase in GBS colonization was observed in H...Continue Reading

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Citations

Feb 22, 2007·Journal of Acquired Immune Deficiency Syndromes : JAIDS·Patrícia El BeituneCarol Kobori Da Fonseca
Oct 21, 2011·Journal of Women's Health·Melisa ShahDeborah Cohan
Jun 24, 2010·Clinics in Perinatology·Jennifer R Verani, Stephanie J Schrag
Mar 2, 2010·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Rooyen Tinago MavenyengwaSvein Arne Nordbø
Jan 2, 2007·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·P El BeituneC M L Maffei
Dec 25, 2012·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·Esaú JoaoUNKNOWN NISDI/LILAC Protocol
May 30, 2016·The Lancet Infectious Diseases·Gaurav KwatraShabir A Madhi
Mar 18, 2017·Journal of Neonatal-perinatal Medicine·R Biobaku OluwafunmilolaO Imaralu John

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