Stressful Events in Early Childhood and Developmental Trajectories of Bedwetting at School Age

OBJECTIVE : To examine whether early stressful events are associated with developmental trajectories of bedwetting.  METHODS : This is a prospective cohort study comprising 8,761 participants from the Avon Longitudinal Study of Parents and Children. Stressful events were measured using a maternal questionnaire completed at 3 time points before their child was 4 years old. The association between stressful events and trajectories of bedwetting from 4 to 9 years was examined using multinomial regression.  RESULTS : The association with stressful events was strongest for the frequent persistent bedwetting trajectory (wetting at least twice a week up to age 9). A 1 standard deviation increase in the stressful events score was associated with a 29% (13-47%) increase in the odds of experiencing frequent persistent bedwetting compared with normal attainment of nighttime bladder control.  CONCLUSIONS : Clinicians and parents should be aware that continence is a developmental outcome that is associated with high levels of stress in the family.