Table 4 Pain characteristics intensity scores according to the three pain severity groups, hip (n = 224) knee (n = 94), mean (SD)
Patients with OA of the hip | Patients with OA of the knee | |||||||
|---|---|---|---|---|---|---|---|---|
Pain characteristic | Mild pain 1 to 4 n = 50 | Moderate pain > 4 to 6 n = 95 | Severe pain 6 > to 10 n = 79 | P | Mild pain 1 to 4 n = 16 | Moderate pain > 4 to 7 n = 61 | Severe pain 7 > to 10 n = 17 | P |
Pain duration (years) | 5.0 (5.1) | 7.3 (7.7) | 6.2 (6.3) | .15 | 14.4(14.3) | 11.0 (10.5) | 8.6 (8.6) | .32 |
Mobility problem (years) | 3.2 (2.8) | 3.5 (4.0) | 4.6 (4.8) | .18 | 4.8 (4.8) | 7.1 (7.9) | 8.5 (10.7) | .47 |
Urgency for surgery (0–100) | 60.6 (20.7) | 67.4 (17.4) | 80.2(13.9) | < .001 a | 55.4(15.4) | 70.7 (18.5) | 78.3(19.3) | .002 c |
Pain Intensity Items from the Brief Pain Inventory | ||||||||
Pain now | 2.3 (2.0) | 4.8 (2.0) | 6.8 (1.9) | < .001 b | 2.4 (1.6) | 5.5 (1.8) | 7.3 (2.3) | < .001 b |
Least Pain | 1.5 (1.4) | 3.1 (1.7) | 4.9 (2.4) | < .001 b | 1.8 (1.5) | 3.6 (1.6) | 6.1 (2.6) | < .001 b |