Postpartum urinary tract infection by mode of delivery: a Danish nationwide cohort study.

ABSTRACT: OBJECTIVES:To examine the association between postpartum urinary tract infection and intended mode of delivery as well as actual mode of delivery. DESIGN:Retrospective cohort study. SETTING AND PARTICIPANTS:All live births in Denmark between 2004 and 2010 (n=450?856). Births were classified by intended caesarean delivery (n=45?053) or intended vaginal delivery (n=405?803), and by actual mode of delivery: spontaneous vaginal delivery, operative vaginal delivery, emergency or planned caesarean delivery in labour or prelabour. PRIMARY AND SECONDARY OUTCOME MEASURES:The primary outcome measure was postpartum urinary tract infection (n=16?295) within 30 days post partum, defined as either a diagnosis of urinary tract infection in the National Patient Registry or redemption of urinary tract infection-specific antibiotics recorded in the Register of Medicinal Product Statistics. RESULTS:We found that 4.6% of women with intended caesarean delivery and 3.5% of women with intended vaginal delivery were treated for postpartum urinary tract infection.Women with intended caesarean delivery had a significantly increased risk of postpartum urinary tract infection compared with women with intended vaginal delivery (OR 1.33, 95% CI 1.27 to 1.40), after adjustment for age at delivery, smoking, body mass index, educational level, gestational diabetes mellitus, infection during pregnancy, birth weight, preterm delivery, preterm prelabour rupture of membranes, pre-eclampsia, parity and previous caesarean delivery (adjusted OR 1.24, 95% CI 1.17 to 1.46).Using actual mode of delivery as exposure, all types of operative delivery had an equally increased risk of postpartum urinary tract infection compared with spontaneous vaginal delivery. CONCLUSIONS:Compared with intended vaginal delivery, intended caesarean delivery was significantly associated with a higher risk of postpartum urinary tract infection. Future studies should focus on reducing routine catheterisation prior to operative vaginal delivery as well as improving procedures related to catheterisation.

SUBMITTER: Gundersen TD 

PROVIDER: S-EPMC5857667 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature