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We identify risk factors for daytime or combined urinary incontinence in children with cerebral palsy.A cross-sectional case-control study was conducted including children with cerebral palsy with or without daytime or combined urinary incontinence from the CP-Reference Center at Ghent University Hospital and 2 associated special education schools. Factors were subdivided in 3 clusters of demographic and general medical data, cerebral palsy classification, and bladder and bowel dysfunction. Data were obtained using uroflowmetry with electromyography testing, a nonvalidated questionnaire and bladder diaries. Univariate and multivariate analyses were performed for variables and clusters, respectively. A final associative logistic model including all clusters was developed.The study included 34 incontinent children and 45 continent children. Daytime or combined urinary incontinence was associated with intellectual disability (OR 7.69), swallowing problems (OR 15.11), use of external aids (OR 27.50) and use of laxatives (OR 13.31). Daytime or combined urinary incontinence was positively associated with dyskinesia (OR 5.67) or combined spasticity and dystonia (OR 4.78), bilateral involvement (OR 4.25), Gross Motor Function Classification System level IV (OR 10.63) and V (OR 34.00), and severe impairment in manual (OR 24.27) or communication skills (OR 14.38). Lower maximum voided volume (OR 0.97) and oral fluid intake (OR 0.96) influenced daytime or combined urinary incontinence negatively. Pathological uroflow curves were not significantly associated with incontinence. The final model defined functional impairment, intellectual disability and oral fluid intake as predictive factors for daytime or combined urinary incontinence.Risk analysis revealed functional impairment, intellectual disability and fluid intake as important factors influencing continence in a child with cerebral palsy.