Table 2.
Baseline and 2-Year Patient-Reported Outcomes (mean ± SD) between Nonobese Patients (NON), Obese Patients without Depression (OBESE), and Obese Patients with Comorbid Depression (O + D).
| Variable | NON | OBESE | O + D | P |
|---|---|---|---|---|
| KOOS QOL | <0.001a | |||
| Baseline | 66.8 ± 20.7 | 64.1 ± 19.7 | 48.7 ± 24.6 | |
| 2-year | 68.7 ± 21.9 | 66.3 ± 21.8 | 44.3 ± 21.6 | |
| WOMAC Pain | <0.001a | |||
| Baseline | 2.1 ± 2.9 | 2.4 ± 3.0 | 5.5 ± 4.6 | |
| 2-year | 2.7 ± 3.3 | 2.9 ± 3.2 | 7.1 ± 4.6 | |
| WOMAC ADL | <0.001a | |||
| Baseline | 6.8 ± 9.2 | 9.1 ± 10.3 | 20.7 ± 16.1 | |
| 2-year | 7.9 ± 9.9 | 9.4 ± 10.4 | 25.1 ± 14.4 | |
| PCS | <0.001a | |||
| Baseline | 50.1 ± 8.3 | 48.0 ± 8.7 | 41.0 ± 9.0 | |
| 2-year | 48.3 ± 9.3 | 46.9 ± 8.9 | 37.6 ± 10.0 |
KOOS QOL = Knee injury and Osteoarthritis Outcome Score Quality of Life subscale; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index; ADL, activities of daily living; PCS, physical component summary.
a
O + D group significantly differed from NON and OBESE groups at both time points.