Table 3.
Multivariate logistic regression analysis for factors associated with foot ulceration – data are n (%), unless otherwise specified
| Foot ulceration | Multivariate logistic regression analysis | ||||
|---|---|---|---|---|---|
| Risk Factor | Yes | No | |||
| n | 45 | 405 | aOR | 95% CI | P-value* |
| Previous amputation | 26 (57.8) | 20 (4.9) | 10.19 | 3.14 to 33.07 | <0.001* |
| Peripheral arterial disease | 42 (93.3) | 194 (47.9) | 6.16 | 1.47 to 25.80 | 0.013* |
| Mean serum albumin (SD), g/L | 31.12 (4.76) | 34.01 (3.74) | 0.87 | 0.78 to 0.96 | 0.008* |
| Mean total calcium (SD), mmol/L | 2.15 (0.13) | 2.20 (0.14) | 0.05 | 0.00 to 1.41 | 0.080 |
| Peripheral neuropathy | 43 (95.6) | 185 (45.7) | 5.02 | 0.97 to 26.02 | 0.055 |
aOR Adjusted odds ratio. CI Confidence interval. *Significant association, p < 0.05. SD Standard deviation. The final multivariate model controlled for the following confounding variables: age, sex, living alone, dialysis duration, diabetes mellitus, serum phosphate, previous foot ulceration and podiatry attendance