Adverse Maternal and Birth Outcomes in Women Admitted to Hospital for Hyperemesis Gravidarum: a Population‐Based Cohort Study

Background Evidence for risks of adverse maternal and birth outcomes in women with hyperemesis gravidarum ( HG ) is predominantly from small studies, unknown, or conflicting. Methods A population‐based cohort study using secondary health care records (Hospital Episode Statistics covering all of England from 1997 to 2012) was used to calculate odds ratios ( OR ) with 99% confidence intervals ( CI ) for the association between HG hospital...