Associations of persistence of knee pain with self-rated health and mental health at baseline
| Characteristic at baseline | Knee pain in last 4 weeks at follow-up | ||
|---|---|---|---|
| No with pain/No in sample | Model 1 | Model 2 | |
| OR (95% CI) | OR (95% CI) | ||
| Separate models were constructed for each row variable. | |||
| In Model 1 risk estimates were adjusted for age, sex and general practice. | |||
| In Model 2, risk estimates were adjusted for age, sex, general practice and characteristics of pain at baseline (frequency and associated disability). | |||
| “Any” knee pain | |||
| Self-rated health | |||
| Excellent | 17/45 | 1.0 | 1.0 |
| Good/very good | 157/348 | 1.2 (0.6 to 2.3) | 1.2 (0.6 to 2.3) |
| Fair/poor | 52/73 | 3.4 (1.5 to 7.7) | 2.8 (1.2 to 6.7) |
| Somatising tendency score | |||
| Best | 25/90 | 1.0 | 1.0 |
| Intermediate | 61/140 | 1.9 (1.1 to 3.5) | 1.7 (0.9 to 3.2) |
| Worst | 131/222 | 3.6 (2.1 to 6.3) | 3.2 (1.8 to 5.7) |
| SF-36 MH score | |||
| Best | 77/168 | 1.0 | 1.0 |
| Intermediate | 60/133 | 1.0 (0.6 to 1.6) | 1.0 (0.6 to 1.6) |
| Worst | 86/162 | 1.4 (0.9 to 2.1) | 1.3 (0.8 to 2.1) |
| Combined mental health score | |||
| Best | 11/48 | 1.0 | 1.0 |
| Intermediate | 151/306 | 3.5 (1.7 to 7.3) | 2.8 (1.3 to 6.0) |
| Worst | 55/99 | 4.3 (1.9 to 9.7) | 3.4 (1.5 to 7.8) |
| Frequent knee pain | |||
| Self-rated health | |||
| Excellent | 3/45 | 1.0 | 1.0 |
| Good/very good | 68/348 | 2.9 (0.8 to 9.7) | 2.7 (0.7 to 9.7) |
| Fair/poor | 31/73 | 7.8 (2.1 to 28.7) | 5.8 (1.4 to 23.5) |
| Somatising tendency score | |||
| Best | 10/90 | 1.0 | 1.0 |
| Intermediate | 28/140 | 1.8 (0.8 to 3.9) | 1.5 (0.6 to 3.6) |
| Worst | 61/222 | 2.8 (1.3 to 5.8) | 2.3 (1.1 to 5.3) |
| SF-36 MH score | |||
| Best | 36/168 | 1.0 | 1.0 |
| Intermediate | 25/133 | 0.9 (0.5 to 1.6) | 0.8 (0.4 to 1.5) |
| Worst | 41/162 | 1.2 (0.7 to 2.1) | 1.1 (0.6 to 2.1) |
| Combined mental health score | |||
| Best | 6/48 | 1.0 | 1.0 |
| Intermediate | 66/306 | 1.8 (0.7 to 4.5) | 1.1 (0.4 to 3.1) |
| Worst | 27/99 | 2.4 (0.9 to 6.6) | 1.5 (0.5 to 4.5) |
| Prescription-treated knee pain | |||
| Self-rated health | |||
| Excellent | 2/45 | 1.0 | 1.0 |
| Good/very good | 58/348 | 3.5 (0.8 to 15.4) | 3.5 (0.7 to 16.2) |
| Fair/poor | 36/73 | 14.4 (3.1 to 67.1) | 12.1 (2.4 to 60.9) |
| Somatising tendency score | |||
| Best | 8/90 | 1.0 | 1.0 |
| Intermediate | 18/140 | 1.3 (0.5 to 3.2) | 1.1 (0.4 to 2.9) |
| Worst | 65/222 | 3.4 (1.5 to 7.7) | 2.9 (1.2 to 6.9) |
| SF-36 MH score | |||
| Best | 26/168 | 1.0 | 1.0 |
| Intermediate | 29/133 | 1.5 (0.8 to 2.8) | 1.5 (0.8 to 3.0) |
| Worst | 39/162 | 1.5 (0.8 to 2.7) | 1.4 (0.7 to 2.6) |
| Combined mental health score | |||
| Best | 3/48 | 1.0 | 1.0 |
| Intermediate | 59/306 | 3.4 (1.0 to 11.9) | 2.7 (0.8 to 9.9) |
| Worst | 29/99 | 5.5 (1.5 to 20.0) | 4.0 (1.0 to 15.5) |