Table 1 Demographic and clinical characteristics of all subjects in the study
Variables | Cases (n= 750) | Control (n= 794) | P |
|---|---|---|---|
Age, years, mean ± SD | 65.2 ± 7.6 | 65.1 ± 5.4 | ns |
Female, n (%) | 401 (53.47%) | 406 (51.13%) | ns |
BMI, kg/m2, mean ± SD | 27.7 ± 2.4 | 22.5 ± 3.1 | 0.001 |
Smoker, n (%) | 283 (37.73%) | 291 (36.65%) | ns |
Family history of OA, n (%) | 60 (8.00%) | 67 (8.43%) | ns |
History of labor work, n (%) | 140 (18.66%) | 158 (19.89%) | ns |
Hypertension | 198 (26.4%) | 206 (25.9%) | ns |
Diabetes mellitus | 152 (20.3%) | 166 (20.9%) | ns |
KL grade | Â | Â | Â |
= < 3 | 351 | - | Â |
> 3 | 399 | - | Â |