Methods to Analyze Time-to-Event Data: The Cox Regression Analysis

Table 2

Multiple Cox regression models of all-cause mortality.

		Crude model		Adjusted model
	Units of increase	Hazard ratio (95% CI), value		Hazard ratio (95% CI), value
GGT	20 U/L	1.10 (1.03–1.18),		1.11 (1.02–1.21),
Age	1 year			1.13 (1.11–1.15),
Gender	Male gender			1.26 (0.98–1.63),
Current smokers	Yes/no			1.93 (1.43–2.63),
BMI	1 kg/m^2			1.01 (0.98–1.04),
LDL cholesterol	1 mg/dl			0.99 (0.98–0.99),
C-reactive protein	1 μg/mL			1.01 (1.01–1.02),
SBP	1 mmHg			1.01 (0.99–1.01),
Alk_P	1 U/L			1.00 (1.00–1.01),
Hemoglobin	1 g/dL			1.04 (0.96–1.13),
Alcohol consumption	1 g/day			0.99 (0.98–0.99),
AST	1 U/L			1.01 (0.99–1.04),
ALT	1 U/L			0.98 (0.96–0.99),
Diabetes mellitus	Yes/no			1.17 (0.85–1.61),
Creatinine clearance	1 ml/min/1.73 m^2			1.00 (0.99–1.01),
Oxidized LDL	1 U/L			1.01 (0.99–1.02),
Past CV events	Yes/no			1.48 (1.15–1.92),
Homocysteine	1 μmol/L			1.02 (1.00–1.03),