Table 3 Conditional logistic regression analysis of surgical delay and intraoperative variables

Interval between injury and operation (days)

1.86 (1.19–2.91)

 4–10

Reference

 < 4

5.2 (1.8–14.9)

 > 10

2.4 (1.1–5.1)

Wound classification (IIvs I)

4.4 (1.7–11.7)

Current smoking

2.6 (1.2–5.6)

Injury mechanism (high vs low and medium energy)

2.1 (1.1–4.8)

HCT (< lower limit)

1.9 (1.0–3.9)