Examining Nonparticipation in the Maternal Follow-up Within the Danish National Birth Cohort.

ABSTRACT: A follow-up questionnaire on maternal health was distributed within the Danish National Birth Cohort (established in 1996-2002) 14 years after the index birth. Responses were obtained from 41,466 (53.2%) of 78,010 eligible mothers. To ensure the appropriate use of these data, the possibility of selection bias due to nonparticipation had to be evaluated. We estimated 4 selected exposure-outcome associations (prepregnancy weight-depression; exercise-degenerative musculoskeletal conditions; smoking-heart disease; and alcohol consumption-breast cancer). We adjusted for several factors associated with participation and applied inverse probability weighting. To estimate the degree of selection bias, we calculated relative odds ratios for the relationship between the baseline cohort and the subse

SUBMITTER: Bliddal M 

PROVIDER: S-EPMC6030819 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature