Weighted prevalence for 4 hip outcomes, by race/ethnicity, sex, and age group, Johnston County Osteoarthritis Project 1991–1997*.
| Racial/ethnic Group | Age | Hip Symptoms | Radiographic Hip OA | Symptomatic Hip OA | Severe Radiographic Hip OA | ||||
|---|---|---|---|---|---|---|---|---|---|
| % | 95% CI | % | 95% CI | % | 95% CI | % | 95% CI | ||
| Caucasian | |||||||||
| Men | All | 31.7 | 29.6, 34.0 | 23.8 | 21.9, 25.9 | 7.6 | 6.4, 8.9 | 2.5 | 1.9, 3.3 |
| 45–54 | 30.3 | 26.5, 34.3 | 20.9 | 17.8, 24.5 | 6.6 | 4.8, 9.0 | 1.7 | 0.9, 3.5 | |
| 55–64 | 29.7 | 25.7, 34.0 | 18.5 | 15.8, 21.7 | 5.7 | 4.2, 7.8 | 0.9 | 0.5, 1.8 | |
| 65–74 | 33.5 | 29.9, 37.4 | 32.0 | 27.9, 36.3 | 8.3 | 6.2, 10.9 | 5.8 | 4.3, 7.9 | |
| 75+ | 40.1 | 32.7, 47.9 | 30.9 | 24.6, 38.0 | 16.2 | 11.3, 22.7 | 1.6 | 0.8, 3.3 | |
| Women | All | 39.4 | 37.1, 41.6 | 29.1 | 27.1, 31.2 | 10.8 | 9.5, 12.2 | 2.3 | 1.8, 3.0 |
| 45–54 | 30.6 | 27.6, 33.7 | |||||||
| 50–54† | 18.5 | 15.5, 21.9 | 4.1 | 2.6, 6.2 | 1.1 | 0.4, 3.1 | |||
| 55–64 | 39.7 | 36.3, 43.2 | 25.1 | 22.1, 28.3 | 10.1 | 8.1, 12.5 | 1.1 | 0.7, 1.8 | |
| 65–74 | 45.1 | 41.2, 49.1 | 28.7 | 25.5, 32.1 | 11.3 | 9.2, 13.9 | 1.5 | 0.8, 2.8 | |
| 75+ | 45.2 | 39.7, 50.9 | 47.4 | 41.8, 53.2 | 17.6 | 14.5, 21.2 | 7.1 | 5.0, 10.1 | |
| African American | |||||||||
| Men | All | 32.0 | 28.5, 35.8 | 33.2 | 29.6, 37.0 | 11.7 | 9.1, 14.9 | 2.7 | 1.7, 4.2 |
| 45–54 | 26.1 | 21.0, 32.0 | 29.3 | 23.7, 35.6 | 5.7 | 3.2, 10.0 | 0.9 | 0.4, 2.2 | |
| 55–64 | 35.3 | 28.4, 42.8 | 34.2 | 26.7, 42.6 | 14.7 | 8.9, 23.4 | 1.5 | 0.6, 3.6 | |
| 65–74 | 41.7 | 35.7, 48.0 | 34.1 | 28.2, 40.6 | 16.9 | 12.8, 22.0 | 5.3 | 3.4, 8.1 | |
| 75+ | 21.1 | 12.9, 32.5 | 43.0 | 33.3, 53.2 | 12.9 | 6.0, 25.5 | 5.8 | 1.3, 21.9 | |
| Women | All | 40.3 | 37.7, 43.0 | 31.2 | 28.2, 34.4 | 12.2 | 10.3, 14.5 | 3.5 | 2.7, 4.6 |
| 45–54 | 36.3 | 32.1, 40.7 | |||||||
| 50–54† | 21.3 | 16.0, 27.7 | 7.8 | 4.4, 13.4 | 0.9 | 0.3, 2.3 | |||
| 55–64 | 42.1 | 37.4, 46.9 | 23.6 | 19.9, 27.8 | 11.6 | 8.6, 15.5 | 1.4 | 0.5, 3.9 | |
| 65–74 | 42.0 | 37.4, 46.9 | 37.1 | 30.8, 44.0 | 12.3 | 8.7, 17.2 | 5.3 | 3.7, 7.5 | |
| 75+ | 42.1 | 34.2, 50.5 | 45.7 | 39.5, 52.0 | 17.7 | 14.0, 22.0 | 7.3 | 4.8, 10.9 | |