36 | Chapter 2 Sensitivity analysis with inertial sensor data used to define physical activity with falls as outcome measure Table A2.1.3 Sensitivity analysis on fall risk 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 0.07 1.00 1.00-1.00 0.42 1.00 1.00-1.00 0.78 Frailty Non-frail Frail Ref 1.86 1.37-2.54 <0.001 Ref 1.89 1.03-3.50 0.04 Ref 1.66 1.12-2.47 0.01 Physical activity * frailty 1.00 0.99-1.01 0.93 Age 1.04 1.01-1.07 0.006 Sex Men Women Ref 1.69 1.24-2.30 0.001 OR Odds ratio, CI Confidence Interval, Ref Reference group.
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