Table 4.

Unadjusted and adjusted linear regression models of WOMAC pain among participants with knee osteoarthritis and currently working (Subsample B).

FeatureUnadjusted Model b* (95% CI)Adjusted Model 1 b (95% CI)Adjusted Model 2 b (95% CI)
African American race (vs white)1.61 (0.42, 2.80)†1.19 (–0.08, 2.45)0.26 (–0.99, 1.50)
No. current occupational tasks—0.35 (0.07, 0.63)†0.31 (0.04, 0.59)†
Age——0.03 (–0.05, 0.10)
Some college (vs no college)——–0.22 (–1.51, 1.07)
Female——2.14 (0.94, 3.34)†
BMI——0.01 (–0.08, 0.10)
Depressive symptoms——0.20 (0.11, 0.29)
Knee injury (vs no knee injury)——1.59 (0.02, 3.17)†
K-L grade of worse knee——1.05 (0.17, 1.93)
Model R20.0270.0450.233

  • ↵* Unstandardized parameter estimate.

  • ↵† p < 0.05. BMI: body mass index; K-L: Kellgren-Lawrence; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.