The Australian & New Zealand journal of obstetrics & gynaecology · 2018
Sexually transmitted infections and preterm birth among Indigenous women of the Northern Territory, Australia: A case-control study.
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Burton Alice E, Thomas Sujatha
Аннотация
BACKGROUND: The incidence of both sexually transmitted infection (STI) and preterm birth is high among Indigenous women in the Northern Territory, Australia. It was hypothesised that these factors are linked.
AIMS: To analyse whether antenatal STI is associated with preterm birth among Northern Territory Indigenous women.
MATERIALS AND METHODS: A retrospective case-control study was conducted at a tertiary maternity hospital in the Northern Territory. Rates of STI among pregnant Indigenous women were compared between cases (singleton births at <37 weeks gestation) and controls (singleton births at 37 or greater weeks gestation). The association between the composite of any STI (chlamydia, gonorrhoea, trichomonas or syphilis) and preterm birth was evaluated by logistic regression analysis, adjusting for confounders. Secondary endpoints were the associations between each of these infections and preterm birth.
RESULTS: There were 380 cases and 380 controls. Diagnosis of any sexually transmitted infection (composite) in pregnancy was not associated with preterm birth (adjusted odds ratio (aOR) 0.9, 95%CI 0.58-1.39). Women were at increased risk of preterm birth if they had gonorrhoea in pregnancy (aOR 2.92, 95%CI 1.07-7.97); there was no association with chlamydia (aOR 1.38, 95%CI 0.63-3.04) or trichomonas (aOR 0.66, 95%CI 0.39-1.12). There were three syphilis diagnoses among controls and none among cases.
CONCLUSIONS: Sexually transmitted infection (considered overall) in pregnancy did not affect preterm birth risk among Northern Territory Indigenous women. An association with preterm birth was observed for gonorrhoea in pregnancy but not with chlamydia, trichomonas or syphilis.
AIMS: To analyse whether antenatal STI is associated with preterm birth among Northern Territory Indigenous women.
MATERIALS AND METHODS: A retrospective case-control study was conducted at a tertiary maternity hospital in the Northern Territory. Rates of STI among pregnant Indigenous women were compared between cases (singleton births at <37 weeks gestation) and controls (singleton births at 37 or greater weeks gestation). The association between the composite of any STI (chlamydia, gonorrhoea, trichomonas or syphilis) and preterm birth was evaluated by logistic regression analysis, adjusting for confounders. Secondary endpoints were the associations between each of these infections and preterm birth.
RESULTS: There were 380 cases and 380 controls. Diagnosis of any sexually transmitted infection (composite) in pregnancy was not associated with preterm birth (adjusted odds ratio (aOR) 0.9, 95%CI 0.58-1.39). Women were at increased risk of preterm birth if they had gonorrhoea in pregnancy (aOR 2.92, 95%CI 1.07-7.97); there was no association with chlamydia (aOR 1.38, 95%CI 0.63-3.04) or trichomonas (aOR 0.66, 95%CI 0.39-1.12). There were three syphilis diagnoses among controls and none among cases.
CONCLUSIONS: Sexually transmitted infection (considered overall) in pregnancy did not affect preterm birth risk among Northern Territory Indigenous women. An association with preterm birth was observed for gonorrhoea in pregnancy but not with chlamydia, trichomonas or syphilis.