Table 1.
Characteristic | Case (n=71) n(%) or mean (SD) | Control (n=168) n(%) or mean (SD) |
---|---|---|
Sex* | ||
Women | 54 (76%) | 126 (75%) |
Men | 17 (24%) | 42 (25%) |
Race* | ||
White | 51 (72%) | 125 (74%) |
African American | 20 (28%) | 43 (26%) |
Side | ||
Right | 47 (66%) | 73 (43%) |
Left | 24 (34%) | 95 (57%) |
Age (years) | 63 (8) | 62 (9) |
BMI (kg/m2) | 30 (6) | 30 (5) |
Height (cm) | 165 (9) | 166 (9) |
Baseline KL grade | ||
0 | 4 (6%) | 26 (15%) |
1 | 22 (31%) | 94 (56%) |
2 | 45 (63%) | 48 (29%) |
Groin pain present | 17 (24%) | 12 (7%) |
Hip Symptoms present | 20 (28%) | 38 (23%) |
History of Hip Injury | 2 (3%) | 3 (2%) |
groups selected to be comparable for sex and race
For BMI, n=237; for height, n=237; for hip symptoms, n=238