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Table 4 Association of BMI and depressed mood with performance-based activity limitations

From: The association of body-mass index and depressed mood with knee pain and activity limitations in knee osteoarthritis: results from the Amsterdam osteoarthritis cohort

Analysis Independent variables B (95% CI) β p Semi-partial r2× 100%
1. BMI 0.42 (0.33, 0.51) 0.47 <0.001 21.9%
2. HADS depression 0.31 (0.14, 0.48) 0.21 0.001 4.0%
3. BMI 0.40 (0.31, 0.49) 0.45 <0.001 19.0%
HADS depression 0.17 (0.01, 0.32) 0.11 0.038 1.1%
  Dominance analysis   
Overall average BMI (0.219 + 0.190)/2 = 0.204 20.4%
  Overall average HADS depression (0.040 + 0.011)/2 = 0.026 2.6%
  1. Performance-based activity limitations were assessed with a get up and go test. In all analyses we adjusted for age, gender, marital status, education level, radiographic OA and comorbidity. B (95% CI), Regression coefficient ( 95% confidence interval). β, Standardized regression coefficient. Semi-partial r 2, Squared semi-partial correlation coefficient. BMI, Body-mass index. HADS, Hospital Anxiety and Depression Scale.