Key clinical point: Sleeping in a supine position during the last trimester of pregnancy was significantly associated with lower infant birth weight.
Major finding: Infants born to women who regularly slept supine at 28 weeks’ gestation or later had significantly lower birth weight than did those whose mothers slept on one side (3,410 g vs. 3,554 g).
Study details: The data come from a subgroup analysis of control participants in the Collaborative Individual Participant Data Meta-analysis of Sleep and Stillbirth conducted in Australia, New Zealand, and the United Kingdom.
Disclosures: The study was supported by a Trans-Tasman Research Funding Grant by Cure Kids and Red Nose Australia. Six coauthors reported receiving numerous grants from a variety of organizations. Dr. Anderson and the remaining coauthors had no financial conflicts to disclose.
Anderson NH et al. JAMA Network Open. 2019 Oct 2. doi: 10.1001/jamanetworkopen.2019.12614.