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Objectives: To determine the prevalence of previous fracture, the rate of fracture over time and associated risk factors for fracture in children with moderate or severe cerebral palsy (CP). Study design: Three hundred and sixty-four children with moderate-to-severe motor impairment (Gross Motor Function Classification System III, IV and V) enrolled in a multi-centre, region-based longitudinal study of growth, nutrition and health. Of these, 297 had baseline fracture information and 261 children had at least one follow-up assessment. Median duration of follow-up was 1.6 years, for over 600 person-years of follow-up. Results: Forty-six (15.5%) children reported 62 previous fractures at baseline assessment. Children with a history of fractures at baseline were older (mean age 11.9 vs. 8.9 years, p< 0.0001) and had greater body fat (triceps z-score À0. 01 vs. À0. 68, p ¼ 0.0003) than children with no previous fracture …