Table 3. Results of Univariate and Multivariate Cox Proportional Hazard Regression Analyses.

Variable	Univariate Cox Hazard Analyses		Multivariate Cox Hazard Analyses
	HR (95% CI)	P	HR (95% CI)	P
Age (years)	1.00 (1.00–1.10)	< 0.001*	1.02 (0.99–1.05)	0.199
Sex	2.20 (0.99–4.80)	0.052	1.60 (0.70–3.65)	0.266
Underlying comorbidity	2.90 (1.50–5.60)	0.002*	3.35 (1.67–6.71)	< 0.001*
Lymphocyte count (x 109/L)	0.12 (0.04–0.35)	< 0.001*	0.12 (0.04–0.38)	< 0.001*
Extent	1.10 (1.00–1.20)	0.001*	1.07 (0.99–1.15)	0.111
Crazy-paving sign	2.80 (1.40–5.50)	0.003*	2.15 (1.03–4.48)	0.042*
Change in liver density (HU)	0.95 (0.91–1.00)	0.031*	0.96 (0.92–1.01)	0.131

^*p < 0.050. CI = confidence interval, HR = hazard ratio