Table II.
Multivariable multi-level logistic regression model for symptomatic midfoot OA
| Predictor variable | Total | Symptomatic midfoot OA | Multi-level logistic regression Midfoot pain vs symptomatic midfoot OA |
|
|---|---|---|---|---|
| β (95% CI) | OR (95% CI) | |||
| People | (n = 269) | (n = 118) | ||
| Age (years) | ||||
| 50–64 | 137 (51) | 49 (42) | 1 | 1 |
| 65–74 | 89 (33) | 41 (35) | 0.49 (−0.31, 1.28) | 1.63 (0.73, 3.61) |
| 75+ | 43 (16) | 28 (24) | 1.16 (0.12, 2.20) | 3.19 (1.13, 9.05) |
| Gender | ||||
| Male | 121 (45) | 52 (44) | 1 | 1 |
| Female | 148 (55) | 66 (56) | 0.14 (−0.57, 0.85) | 1.15 (0.56, 2.35) |
| Body mass index | ||||
| Non-obese | ||||
| (<30 kg/m2) | 133 (49) | 49 (42) | 1 | 1 |
| Obese | ||||
| (≥30 kg/m2) | 136 (51) | 69 (58) | 0.71 (−0.04, 1.46) | 2.03 (0.96, 4.29) |
| Feet | (n = 404) | (n = 147) | ||
| Arch Index | ||||
| Normal (0.21–0.28) | 262 (65) | 85 (58) | 1 | 1 |
| High arch (<0.21) | 55 (14) | 15 (10) | −0.19 (−1.21, 0.83) | 0.82 (0.30, 2.28) |
| Low arch (>0.28) | 87 (22) | 47 (32) | 1.18 (0.31, 2.05) | 3.25 (1.36, 7.76) |
| Constant | −1.91 (−2.78, −1.03) | |||
β, beta coefficient; OR, odds ratio.