Table 3.
Association* between symptoms post-initial injection and first switching/continuation of corticosteroid injections among participants with radiographic confirmed knee osteoarthritis.
| Switching users | Continued users | ||
|---|---|---|---|
| Pain | Odds Ratio (95% Confidence Interval) | ||
| Crude | 1.04 (0.97 to 1.12) | 0.93 (0.87 to 1.00) | |
| Adjusteda | 0.97 (0.88 to 1.07) | 0.91 (0.83 to 0.99) | |
| Stiffness | |||
| Crude | 1.02 (0.86 to 1.21) | 0.88 (0.75 to 1.03) | |
| Adjusteda | 0.83 (0.66 to 1.05) | 0.77 (0.63 to 0.94) | |
| Physical function | |||
| Crude | 1.00 (0.98 to 1.03) | 0.99 (0.97 to 1.01) | |
| Adjusteda | 0.97 (0.94 to 1.00) | 0.97 (0.94 to 1.00) | |
*
Odds ratios (95% Confidence Intervals) were estimated using participants with one-time use of injections as the reference group.
a
Adjusted for age at the index visit, sex, K-L grade, comorbidity status, and SF-12 physical component scores.