Investigation of bias due to loss of participants in a Dutch multicentre prospective spinal cord injury cohort study

Objective: To determine bias due to loss of participants (attrition bias) in a prospective cohort study. Design: A multi-centre prospective cohort study. Subjects: A total of 225 individuals with a spinal cord injury from 8 Dutch rehabilitation centres. Methods: Participants were considered non-participants when no information was collected at the measurement one year after discharge from inpatient rehabilitation. Using bivariate tests participants and non-participants were compared regarding personal, lesion, function and functional characteristics determined at the beginning of inpatient reh... Mehr ...