The effects of an individualized health-risk report intervention on changes in perceived inactivity-related disease risk in adults with cerebral palsy.

Background: To explore the effect of an individualized health-risk report intervention on changes in perceived disease risk in adults with cerebral palsy (CP).

Hypotheses: 1. Perceived disease risk from those at risk for heart disease, obesity, and/or diabetes will be greater compared to those not at risk following receipt of health-risk information; 2. There will be a positive relationship between risk measures of inactivity-related diseases and post-intervention perceived disease risk; and increases in perceived disease risk will predict increases in physical activity (PA).

Methods: An individualized health-risk report was delivered to each participant. Three brief telephone interviews were conducted over two weeks to measure perceptions of disease risk and PA. Two-way repeated measures ANOVA and regression analyses were performed to address the study objectives.

Results: Thirty-one adults with CP (Gross Motor Function Classification System level I-V; age, 33.7 ± 13.1y) completed the study. The health-risk report did not change the perceived risk of any inactivity-related disease. We found significant main effects for hypertension (p = 0.02; 95% CI [-1.1, -0.5]) on perceived risk of heart disease, and for waist circumference (p < 0.01; 95% CI [-1.3, -0.3]) and BMI (p < 0.01; 95% CI [-1.3, -0.3]) on perceived risk of obesity. PA did not change following the intervention.

Conclusions: An individualized health-risk report intervention did not change perceived risk of inactivity-related disease or change PA behaviour. Blood pressure, waist circumference and BMI were salient measures of health that affected perceived disease risk in adults with CP; these health variables should be assessed and managed through clinical encounters.