Table 2.
Unadjusted and adjusted associations of JoCo participant characteristics with foot symptomatic osteoarthritis (odds ratios (OR) and 95% confidence intervals (CI)).
| Characteristic | Overall N=863 |
Foot sxOA N=46 (5.3%) |
No Foot sxOA N=817 (94.7%) |
OR* (95% CI) |
Adjusted OR** (95% CI) |
|---|---|---|---|---|---|
| Age: years, mean (SD) | 71.2 (7.6) | 71.0 (7.1) | 71.2 (7.6) | 1.01 (0.97, 1.05) | 1.02 (0.97, 1.07) |
| Obese, n/N (%) | 435/863 (50.4) | 34/46 (73.9) | 401/817 (49.1) | 4.60 (1.40, 15.1) | 5.13 (1.49, 17.7) |
| Overweight, n/N (%) | 296/863 (34.3) | 9/46 (19.6) | 287/817 (35.1) | 1.64 (0.44, 6.18) | 1. 81 (0.44, 7.53) |
| Normal Weight, n/N (%) | 132/863 (15.3) | 3/46 (6.5) | 129/817 (15.8) | referent | referent |
| Women, n/N (%) | 588/863 (68.1) | 35/46 (76.1) | 553/817 (67.7) | 1.49 (0.72, 3.06) | 1.47 (0.66, 3.30) |
| Men, n/N (%) | 275/863 (31.9) | 11/46 (23.9) | 264/817 (32.3) | referent | referent |
| African American, n/N (%) | 289/863 (33.5) | 15/46 (32.6) | 274/817 (33.5) | 0.97 (0.50, 1.88) | 0. 76 (0.37, 1.68) |
| White, n/N (%) | 574/863 (66.5) | 31/46 (67.4) | 543/817 (66.5) | referent | Referent |
| <12 years education, n/N (%) | 114/860 (13.3) | 11/46 (23.9) | 103/814 (12.7) | 2.15 (1.04, 4.45) | 1.93 (0.86, 4.35) |
| 12+ years education, n/N (%) | 746/860 (86.7) | 35/46 (76.1) | 711/814 (87.3) | referent | referent |
| Foot injury, n/N (%) | 33/861 (3.8) | 4/46 (8.7) | 29/815 (3.6) | 2.82 (0.72, 11.1) | 3.18 (0.76, 13.3) |
| No foot injury, n/N (%) | 828/861 (96.2) | 42/46 (91.3) | 786/815 (96.4) | referent | referent |
sxOA = symptomatic osteoarthritis
*
adjusted only for intra-person correlation using generalized estimating equations
**
adjusted for intra-person correlation and all other listed covariates