Surgery* | Non-operative* | Incremental difference† | |
---|---|---|---|
WOMAC | |||
Baseline | 1222.91 (478.16) | 1355.26 (548.92) | −132.35 (−24.58 to 289.29), 0.10 |
24-month | 1526.45 (623.83) | 1510.77 (570.21) | 15.69 (−198.35 to 166.98), 0.87 |
Utility | |||
Baseline | 0.79 (0.22) | 0.80 (0.21) | 0.01 (−0.06 to 0.07), 0.85 |
24-month | 0.84 (0.23) | 0.86 (0.16) | 0.02 (−0.04 to 0.08), 0.47 |
QALY | 1.64 (0.40) | 1.66 (0.30) | −0.02 (−0.09 to 0.13), 0.72 |
Cost‡ | |||
Healthcare payer perspective | 2633.25 (574.43) | 737.40 (542.93) | 1895.85 (1716.13 to 2075.57), <0.01 |
Societal perspective | 3825.60 (1443.48) | 1614.22 (1784.94) | 2211.38 (1716.04 to 2706.51), <0.01 |
*Mean (SD).
†Mean difference between groups (95% CI), p value.
‡2014 Canadian dollars.
QALY, quality-adjusted life year; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.