Course of maternal fatigue and its associated factors during the first 6 months postpartum: a prospective cohort study.

Aims: To identify the course of maternal fatigue during the first 6 months postpartum and to determine factors associated with it.

Design: A prospective cohort study.

Methods: Women (=2,697) in 13 Japanese hospitals provided longitudinal data using self-report questionnaires at five time points.