Table 3.

Multivariate analysis of variables associated with post-operative collections and post-operative drain placement after a liver resection

	Post-operative collection			Post-operative drain
	OR	95% CI	P	OR	95% CI	P
Age >60 years	0.744	0.275–2.012	0.560	0.826	0.282–2.415	0.727
Gender (female)	0.915	0.312–2.683	0.871	0.855	0.267–2.737	0.792
ASA score	1.816	0.736–4.48	0.195	1.701	0.542–4.511	0.286
Drain placement	1.566	0.564–4.348	0.389	1.027	0.341–3.092	0.962
Resection of ≥3 segments	1.638	0.585–4.591	0.348	1.677	0.551–5.101	0.362

CI, confidence interval; OR, odds ratio; ASA, American Society of Anesthesiologists.