Variable | Comparison | Odds Ratio | 95% CI | P-value |
---|---|---|---|---|
Age | Increase by 10 years | 1.05 | 0.78–1.42 | 0.75 |
Gender | Male vs. female | 0.66 | 0.32–1.36 | 0.26 |
BMI | ≥ 18.5 vs. < 18.5 kg/m2 (underweight) | 0.67 | 0.30–1.51 | 0.33 |
Diabetes | Yes vs. no (Identified DM on oral agents or insulin in 30 days pre-op) | 1.55 | 0.64–3.73 | 0.33 |
Smoking | Yes vs. no (current smoker within 1 year) | 1.48 | 0.76–2.89 | 0.24 |
Functional Status | Dependent vs. independent (in last 30 days) | 0.84 | 0.27–2.63 | 0.76 |
COPD history | Yes vs. no (history severe COPD) | 0.72 | 0.31–1.67 | 0.44 |
CHF history | Yes vs. no (within last 30 days) | 1.33 | 0.14–12. 43 | 0.80 |
HTN requiring medication | Yes vs. no | 0.81 | 0.41–1.57 | 0.52 |
Pre-op wound infection | Yes vs. no (open or infected wound at site at time of OR) | 1.83 | 0.50–6.71 | 0.36 |
Chronic steroid use | Yes vs. no | 2.39 | 0.80–7.20 | 0.12 |
Weight loss | > 10% loss in 6mo pre-op vs. < 10% | 0.91 | 0.40–2.06 | 0.82 |
Bleeding disorder history | Yes vs. no identified history | 1.52 | 0.31–7.54 | 0.61 |
Pre-op transfusion | > 4 units PRBCs vs. ≤ 4 (in 72 h pre-op) | 6.28 | 1.06–37.30 | 0.04 |
Wound class | Contaminated vs. Clean/Clean-contaminated | 6.28 | 2.29–17.94 | 0.0004 |
Dirty vs. Clean/Clean-contaminated | 8.87 | 1.99–39.45 | 0.004 | |
ASA Class | 3–5 vs. 1–2 | 0.93 | 0.30–2.82 | 0.89 |
Peri-op or post-op transfusion | Yes vs. no (any transfusion of PRBC or whole blood from start of OR to 72 h post-op) | 0.80 | 0.09–6.85 | 0.84 |
TEP insertion during procedure | Yes vs. no | 1.13 | 0.51–2.50 | 0.77 |
Reconstruction type | Free flap vs. Primary closure | 2.81 | 1.31–5.99 | 0.008 |
Regional flap vs. Primary closure | 1.45 | 0.67–3.11 | 0.34 | |
Regional flap vs. Free flap | 0.51 | 0.21–1.24 | 0.14 |