Table 4.

Comparison of risk assessment techniques

	OR	95% CI	P value	Range of predictive values
ASA grade	0.85	0.37–1.94	0.7	1–4
CCI score	1.49	1.09–2.04	0.01	0–9
VEeqCO2 at AT	1.09	1.01–1.17	0.04	17–50
Number of liver segments resected	2.94	1.86–4.66	< 0.001	1–6

Multivariate analysis of risk assessment techniques in the prediction of CD grade III–V complications compared with grade 0–II complications following 172 liver resections