2 Physical activity as a risk or protective factor | 37 Sensitivity analysis with inertial sensor data used to define physical activity with fall-related fractures as outcome measure Table A2.1.4 Sensitivity analysis on the risk of fall-related fractures using inertial sensor data for physical activity Model 1: physical activity Model 2: frailty Model 3: physical activity, frailty and interaction term Model 4: physical activity, frailty, age and sex OR 95% CI p value OR 95% CI p value OR 95% CI p value OR 95% CI p value Physical activity (minutes/day) 1.00 0.99-1.00 0.41 1.00 0.99-1.00 0.50 1.00 0.99-1.00 0.44 Frailty Non-frail Frail Ref 1.21 0.63-2.32 0.57 Ref 1.26 0.32-4.94 0.74 Ref 0.61 0.25-1.47 0.27 Physical activity * frailty 0.99 0.96-1.02 0.34 Age 1.01 0.96-1.07 0.72 Sex Men Women Ref 1.89 0.98-3.63 0.056 OR Odds ratio, CI Confidence Interval, Ref Reference group.
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