Association between timing and duration of breech presentation during pregnancy and developmental dysplasia of the hip: A case-control study.

ABSTRACT: This case-control study investigated the association between timing and duration of breech presentation in pregnancy and developmental dysplasia of the hip (DDH). Children with DDH aged 3 years or younger (n = 191) were compared with healthy controls (n = 209). Data on outcome, exposure and, covariates were collected using a parents' self-report online questionnaire. Term children with breech presentation at one or more check-ups after 30.0 weeks gestation had a twofold higher risk of developing DDH compared to children who had never presented in breech (OR 2.01; 95% CI [1.28, 3.15]). The strength of the association increased with duration of breech presentation (5-8 weeks: OR 2.65; 95% CI [1.36, 5.18]; 9-12 weeks: OR 3.63; 95% CI [1.82, 7.24]). Children who had presented in

SUBMITTER: Konijnendijk A 

PROVIDER: S-EPMC9932609 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature