| Response to joint block | P value | |
---|---|---|---|
 | Positive | Negative |  |
Age (yrs) | 70 (10) | 76 (6) | 0.016* |
Disease duration (mo) | 72 [12, 180] | 120 [50, 240] | 0.024* |
JOA knee score (pts) | 63 (14) | 58 (15) | 0.090 |
Pain BAS during walk (mm) | 64 (19) | 62 (15) | 0.653 |
Kellgren-lawrence grade 4 (%)†| 48 | 48 | 0.995 |
Knee range of motion (deg) | 122 (22) | 125 (17) | 0.708 |
Total painful area | 2 [1, 4] | 4 [3, 7] | 0.003** |