Gonorrhoea and chlamydia increase risk of preterm birth

University of New South Wales researchers analysed birth records from more than 350,000 women between 1999 and 2008 in NSW and linked the data to state records on notifiable conditions.

The 1% of women with prior chlamydia notifications were 17% more likely to have a spontaneous preterm birth (SPTB), and 42% more likely to have a stillbirth than those without infection.

Only 0.06% of women had a prior gonorrhoea notification but these women were more than twice as likely to have an SPTB or a stillborn baby.