Table 4.
Results of logistic regression to assess the impact of clinical and demographic factors on the chance of recurrence of infection.
| Variables | Demographic and clinical factors |
Stage of osteomyelitis | Type of osteomyelitis | ||
|---|---|---|---|---|---|
| Equation 1 | Equation 2 | Equation 3 | |||
| Constanta | 1.17 (0.542) | -1.15 (<0.001)b | -1.41 (<0.001)b | -1.60 (<0.001)b | -1.74 (<0.001)b |
| Age | -0.01 (0.401) | - | - | - | - |
| Gender | -1.08 (0.113) | - | - | - | - |
| Diabetes mellitus | -0.13 (0.898) | - | - | - | - |
| History of previous failed treatment | 0.82 (0.083) | - | - | - | - |
| Duration of symptoms | -0.005 (0.71) | ||||
| Hemoglobin level | -0.06 (0.650) | - | - | - | - |
| WBC count | -0.0001 (0.06) | - | - | - | - |
| C-reactive Protein | - | -0.01 (0.204) | - | - | - |
| Erythrocyte sedimentation rate | - | - | 0.001 (0.801) | - | - |
| Cirney-Mader stage 2 | - | - | - | -1.09 (0.190) | - |
| Cirney-Mader Stage 3 | - | - | - | -0.74 (0.321) | - |
| Cirney-Mader stage 4 | - | - | - | 0.94 (0.056) | - |
| Type of osteomyelitis - exogenous | - | - | - | - | 0.53 (0.384) |
| Type of osteomyelitis – implant related | - | - | - | - | 0.37 (0.446) |
| R Square | 0.07 | 0.02 | 0.0005 | 0.09 | 0.006 |
WBC: white blood cell.
a
Constant captured by Cirney-Mader stage 1 in “Stage of osteomyelitis” category and hematogenous osteomyelitis in “Type of osteomyelitis” category
b
Statistically significant.