Table 5. Results of multivariate regression analysis to determine independent predictors of anemia in the population.
| Variable | P value | OR | 95% C.I. for OR | |
|---|---|---|---|---|
| Lower | Upper | |||
| Ulcer duration ≥ 1 month | 0.504 | 1.217 | 0.684 | 2.164 |
| Presence of PAD | 0.584 | 1.219 | 0.600 | 2.473 |
| Foot gangrene | 0.100 | 1.575 | 0.916 | 2.709 |
| Proteinuria | 0.249 | 1.400 | 0.790 | 2.479 |
| Osteomyelitis | 0.380 | 1.311 | 0.716 | 2.400 |
| Stroke | 0.063 | 2.472 | 0.953 | 6.409 |
| Renal impairment | 0.239 | 1.548 | 0.748 | 3.207 |
| Moderate arterial stenosis | 0.352 | 0.586 | 0.190 | 1.806 |
| Severe arterial stenosis | 0.541 | 0.723 | 0.256 | 2.042 |
PAD = peripheral artery disease, OR = adjusted odds ratio (multivariate logistic regression), p = probability of committing type 1 error (multivariate logistic regression), C.I. = Confidence interval.