TABLE 1.
Demographic and clinical characteristics of osteoarthritis patients (discovery group) and controls. To identify demographic difference between groups ANOVA and t tests were performed for continuous data. Chi‐square tests were performed for categorical data
| Controls (n = 35) | Knee OA (discovery group; n = 46) | p‐Value | |
|---|---|---|---|
| Age (years), mean, SD | 59.5 ± 7.91 | 65.3 ± 7.41 | .001** |
| Sex (female), n, % | 20; 57.1% | 30; 65.2% | .49 |
| BMI (kg/m2), mean, SD | 28.2 ± 4.57 | 30 ± 4.3 | .07 |
| Smoking, n, % | 7; 20% | 4; 8.7% | .19 |
| Education, n, % | .09 | ||
| Primary education | 20; 57.1% | 34; 73.9% | |
| Secondary education | 8; 22.9% | 8; 17.4% | |
| Postsecondary education | 7; 20% | 4; 8.7% | |
| Habitation, n, % | .78 | ||
| Alone | 6; 17.4% | 10; 21.7% | |
| Cohabitation | 29; 82.8% | 36; 78.3% | |
| Marital status, n, % | .28 | ||
| Married | 26; 74.3% | 30; 65.2% | |
| Never married | 3; 8.6% | 3; 6.5% | |
| Divorced | 2; 5.7% | 4; 8.7% | |
| Widowed | 4; 11.4% | 9; 19.6% |
Note: p < .01.
Abbreviations: ANOVA, analysis of variable; BMI, body mass index; OA, osteoarthritis.