Comparison of demographic details of cases (knee pain positive) and controls (knee pain negative) with the corresponding total population from postal survey. Means and standard deviations are quoted. Physical functions scores are derived from the SF-36 Health Status Questionnaire
| Knee pain positive | Knee pain negative | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases | Total population | Controls | Total population | ||||||||
| Men | Women | Men | Women | Men | Women | Men | Women | ||||
| Age | 61.4 (10.8) | 61.0 (11.2) | 56.8 (10.6) | 58.5 (11.4) | 61.3 (10.8) | 60.5 (10.7) | 55.3 (10.2) | 55.6 (11.0) | |||
| Body mass index | 27.6 (3.9) | 27.6 (5.6) | 26.5 (3.7) | 27.0 (5.3) | 26.2 (3.5) | 25.3 (3.8) | 25.7 (3.3) | 24.8 (3.9) | |||
| Physical function score | 52.5 (28.2) | 52.6 (24.7) | 63.4 (31.1) | 56.6 (29.6) | 76.7 (26.7) | 80.2 (20.8) | 82.2 (24.9) | 81.1 (23.2) | |||