Table 3 Results of univariate logistic regression and exact logistic regression analysis Baseline profile, infected ORIF constructs only
Variable | Logistic regression, OR (95% CI) | p | Exact logistic regression, OR (95% CI) | p |
|---|---|---|---|---|
Age | 1.01 (0.98–1.03) | 0.641 | 1.01 (0.98–1.03) | 0.650 |
Male gender | 1.19 (0.48–2.99) | 0.706 | 1.19 (0.44–3.35) | 0.889 |
BMI | 1.02 (0.96–1.08) | 0.598 | 1.02 (0.95–1.08) | 0.601 |
Smoking | 1.23 (0.49–3.08) | 0.661 | 1.23 (0.44–3.38) | 0.836 |
Diabetes mellitus | 1.31 (0.27–6.29) | 0.734 | 1.31 (0.18–8.35) | 1.000 |
ASA class | 1.03 (0.52–2.04) | 0.924 | 1.03 (0.49–2.17) | 1.000 |
MRSA present | 1.79 (0.34–9.45) | 0.495 | 1.77 (0.22–14.15) | 0.779 |
Local antibiotics | 1.03 (0.33–3.18) | 0.956 | 1.03 (0.27–3.59) | 1.000 |
Systemic fluoroquinolones | ||||
 Any use | 0.94 (0.38–2.31) | 0.896 | 0.94 (0.35–2.53) | 1.000 |
 1 to 7 days | 1.04 (0.30–3.68) | 0.949 | 1.04 (0.23–4.29) | 1.000 |
 8 to 31 days | 0.42 (0.08–2.18) | 0.300 | 0.42 (0.04–2.46) | 0.499 |
  > 31 days | 1.43 (0.41–4.92) | 0.572 | 1.42 (0.34–5.85) | 0.796 |
 1 to 31 days | 0.73 (0.25–2.11) | 0.560 | 0.73 (0.21–2.35) | 0.758 |
  > 31 days | 1.43 (0.41–4.92) | 0.572 | 1.42 (0.34–5.85) | 0.796 |
Systemic rifampicin | ||||
 Any use | 0.88 (0.32–2.40) | 0.805 | 0.88 (0.28–2.64) | 1.000 |
 1 to 31 days | 0.41 (0.08–2.12) | 0.289 | 0.42 (0.04–2.35) | 0.476 |
  > 31 days | 1.42 (0.42–4.74) | 0.572 | 1.41 (0.35–5.60) | 0.790 |
Fluoroquinolones or rifampicin | 0.95 (0.56–1.59) | 0.838 |  |  |
 Either | 0.81 (0.24–2.74) | 0.729 | 0.81 (0.19–3.13) | 0.980 |
 Combined | 0.92 (0.32–2.63) | 0.877 | 0.92 (0.28–2.94) | 1.000 |