Table 2.
Unadjusted and adjusted associations between body mass index and physical function measures.
| Model 1a | Model 2b | |||||
|---|---|---|---|---|---|---|
| BMI coeff (P) | Model F (P) | Model R 2 | BMI coeff (P) | Model F (P) | Model R 2 | |
|
| ||||||
| Physical function measures | ||||||
| Six-minute walk | −5.16 (<0.0001) | 109.96 (<0.0001) | 0.22 | −5.10 (<0.0001) | 35.78 (<0.0001) | 0.35 |
| Chair stands | −0.10 (<0.0001) | 23.70 (<0.0001) | 0.06 | −0.08 (0.0001) | 13.10 (<0.0001) | 0.17 |
| Seated reach | −0.36 (<0.0001) | 39.22 (<0.0001) | 0.09 | −0.35 (<0.0001) | 12.58 (<0.0001) | 0.16 |
| Walking velocity | −0.009 (<0.0001) | 59.99 (<0.0001) | 0.13 | −0.009 (<0.0001) | 17.40 (<0.0001) | 0.21 |
| Grip strength | 0.17 (0.007) | 7.43 (0.007) | 0.02 | 0.16 (0.001) | 45.20 (<0.0001) | 0.41 |
aModel 1: unadjusted; it contains only BMI (model df = 1).
bModel 2: adjusted for age, gender, race, moderate to vigorous intensity physical activity, and arthritis drug usage (model df = 9).