Table 1 Distributions of select variables in OA cases and controls
Variables | Case | Control | P |
|---|---|---|---|
n = 278 (%) | n = 289 (%) | ||
Age, year (mean ± SD) | 62.00 ± 10.55 | 61.13 ± 10.92 | 0.34 |
Gender | 0.87 | ||
Male | 82(29.5) | 87(30.1) | |
Female | 196(70.5) | 202(69.9) | |
BMI | 24.97 ± 3.26 | 23.84 ± 2.96 | < 0.01 |
< 25 | 150(54.0) | 189(66.5) | < 0.01 |
≥ 25 | 128(46.0) | 95(33.5) | |
KL classification | |||
1–2 | 135 | ||
3–4 | 143 |