Severity of Nausea and Vomiting in Singleton and Twin Pregnancies in Relation to Fetal Sex: The Japan Environment and Children's Study (JECS).

CONCLUSIONS: Female sex birth and multiple births are risk factors for the presence of NVP, and especially for severe NVP without interaction. These findings suggest that a factor abundant in the female fetus associates with the severity of NVP. PMID: 30416162 [PubMed - as supplied by publisher]
Source: Journal of Epidemiology - Category: Epidemiology Tags: J Epidemiol Source Type: research