Association of Body Mass Index with Physical Function and Health-Related Quality of Life in Adults with Arthritis
Table 2
Unadjusted and adjusted associations between body mass index and physical function measures.
Model 1a
Model 2b
BMI coeff ()
Model ()
Model
BMI coeff ()
Model ()
Model
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
Model 1: unadjusted; it contains only BMI (model df = 1). Model 2: adjusted for age, gender, race, moderate to vigorous intensity physical activity, and arthritis drug usage (model df = 9).