Population prevalence of symptomatic foot OA by anatomical location and age, gender and socioeconomic classification
| 1st MTPJ | 1st CMJ | 2nd CMJ | NCJ | TNJ | Overall | |
|---|---|---|---|---|---|---|
| Symptomatic radiographic OA | 7.8 (6.7 to 8.9) | 3.9 (2.9 to 4.9) | 6.8 (5.7 to 7.8) | 5.2 (4.0 to 6.4) | 5.8 (4.8 to 6.9) | 16.7 (15.3 to 18.0) |
| Males | 6.7 (5.3 to 8.0) | 3.6 (2.4 to 4.9) | 5.0 (3.8 to 6.2) | 3.8 (2.4 to 5.2) | 5.0 (3.4 to 6.7) | 14.3 (12.6 to 16.0) |
| Females | 8.8 (7.4 to 10.3) | 4.2 (2.9 to 5.4) | 8.5 (6.9 to 10.2) | 6.7 (5.0 to 8.3) | 6.6 (5.3 to 8.0) | 18.9 (16.9 to 20.9) |
| Age | ||||||
| 50–64 | 6.9 (5.5 to 8.2) | 4.1 (2.8 to 5.4) | 6.0 (4.6 to 7.4) | 4.8 (3.4 to 6.2) | 5.6 (4.1 to 7.1) | 15.9 (13.9 to 17.9) |
| 65–74 | 8.7 (6.6 to 10.8) | 3.5 (2.2 to 4.7) | 6.4 (4.8 to 7.9) | 4.9 (3.1 to 6.8) | 5.7 (4.1 to 7.2) | 17.0 (14.8 to 19.2) |
| 75+ | 9.0 (6.7 to 11.2) | 3.9 (1.6 to 6.2) | 9.8 (7.2 to 12.5) | 7.0 (4.7 to 9.3) | 7.0 (4.8 to 9.1) | 18.5 (15.8 to 21.1) |
| Age, males | ||||||
| 50–64 | 5.8 (4.1 to 7.5) | 4.0 (2.3 to 5.7) | 4.6 (3.1 to 6.0) | 3.5 (1.9 to 5.2) | 5.0 (2.8 to 7.2) | 13.9 (11.5 to 16.3) |
| 65–74 | 8.0 (5.5 to 10.6) | 3.2 (1.3 to 5.2) | 4.6 (2.6 to 6.7) | 3.6 (1.7 to 5.6) | 4.6 (2.5 to 6.8) | 15.0 (12.0 to 18.0) |
| 75+ | 7.1 (4.3 to 9.9) | 2.9 (0.3 to 5.4) | 7.2 (4.3 to 10.2) | 4.9 (2.1 to 7.6) | 5.9 (3.0 to 8.8) | 14.4 (10.8 to 18.1) |
| Age, females | ||||||
| 50–64 | 7.9 (6.1 to 9.8) | 4.3 (2.4 to 6.2) | 7.5 (5.0 to 10.0) | 6.1 (4.1 to 8.1) | 6.1 (4.3 to 7.9) | 17.9 (15.1 to 20.6) |
| 65–74 | 9.4 (6.5 to 12.3) | 3.7 (1.7 to 5.6) | 8.2 (6.0 to 10.4) | 6.3 (3.6 to 8.9) | 6.7 (4.1 to 9.4) | 19.0 (15.6 to 22.4) |
| 75+ | 10.3 (7.3 to 13.4) | 4.7 (1.7 to 7.7) | 11.7 (8.0 to 15.5) | 8.6 (5.1 to 12.2) | 7.7 (4.8 to 10.6) | 21.4 (17.7 to 25.2) |
| Socioeconomic classification | ||||||
| Managerial and professional | 4.8 (3.3 to 6.3) | 2.5 (0.8 to 4.1) | 3.7 (2.1 to 5.3) | 2.5 (0.9 to 4.2) | 3.8 (2.1 to 5.5) | 10.2 (8.0 to 12.5) |
| Intermediate occupations | 8.7 (5.9 to 11.5) | 4.0 (1.0 to 7.0) | 6.9 (4.6 to 9.2) | 6.1 (3.7 to 8.6) | 6.1 (3.0 to 9.3) | 17.9 (14.7 to 21.1) |
| Routine and manual | 8.3 (6.6 to 10.0) | 4.1 (2.9 to 5.4) | 7.3 (5.7 to 8.9) | 6.1 (4.6 to 7.6) | 6.4 (4.9 to 7.8) | 18.2 (16.2 to 20.1) |
CMJ, cuneometatarsal joint; OA, osteoarthritis; MTPJ, metatarsophalangeal joint; NCJ, navicular first cuneiform joint; TNJ, talonavicular joint.