An outcome-based definition of low birthweight for births in low- and middleincome countries: A secondary analysis of the WHO global survey on maternal and perinatal health

While previous studies have used statistical approaches to define LBW cutoffs, a LBW definition using an outcomebased approach has not been evaluated. We aimed to identify an outcome-based definition of LBW for live births in low- and middle-income countries (LMICs), using data from a WHO cross-sectional survey on maternal and perinatal health outcomes in 23 countries.