Determinants of Early Neonatal Weight Loss in Historical Swiss Maternity Hospital Records

Objective

Early neonatal weight loss is an aspect of neonatal adaptation influenced by maternal, nutritional, and perinatal factors. Determinants of early neonatal weight loss in historical populations remain poorly understood. This study investigated determinants of neonatal weight loss as an early postnatal adaptation phenotype using Swiss maternity hospital records from 1905 to 1924, including the influence of the First World War and the 1918-1920 influenza pandemic.