Patients | Total | Pain | No pain | p |
---|---|---|---|---|
(N = 297) | (N = 219) | (N = 78) | ||
age (years) | 77.0 (±5.0) | 77.1 (±5.0) | 76.9 (±4.9) | 0.83 |
health problems (n) | 11.2 (±4.6) | 12.0 (±4.6) | 9.0 (±3.8) | <0.001 |
self-rated health | 2.4 (±0.7) | 2.5 (±0.7) | 2.1 (±0.7) | <0.001 |
 1 to 4 (very good to bad) | ||||
education | 1.9 (±0.7) | 1.9 (±0.5) | 2.0 (±0.5) | 0.10 |
 1 to 3 (low to high)a | ||||
income | 1.9 (±0.5) | 1.8 (±0.7) | 2.0 (±0.8) | 0.06 |
 1 to 3 (low to high)b |