30 | Chapter 2 Table 2.3 Generalized estimating equation models on fall-related fractures 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 0.99-1.01 0.72 1.00 0.99-1.01 0.56 1.00 0.99-1.01 0.83 Frailty Non-frail Frail Ref 2.10 1.18-3.75 0.01 Ref 2.81 1.02-7.75 0.05 Ref 1.90 0.92-3.90 0.08 Physical activity * frailty 0.99 0.97-1.01 0.33 Age 1.00 0.94-1.08 0.92 Sex Men Women Ref 1.05 0.51-2.19 0.89 OR Odds ratio, CI Confidence Interval, Ref Reference group. Analysis included 311 respondents and 1144 observations.
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