Table 2.

Multivariate Cox regression analysis of Waist-BMI Ratio with cause-specific mortality.

	Overall mortality				Cardiovascular mortality
	Event rate/1000 person-years	Model I	Model II	Model III	Event rate/1000 person-years	Model I	Model II	Model III
Waist-BMI Ratio
As continuous variables	13.65	3.55 (3.08, 4.09) <0.001	1.60 (1.34, 1.90) <0.001	1.78 (1.48, 2.13) <0.001	2.84	4.11 (3.07, 5.51) <0.001	1.30 (0.91, 1.85) 0.153	1.77 (1.25, 2.52) 0.001
As categorical variables (quintiles)
Q1	7.47	Reference	Reference	Reference	1.37	Reference	Reference	Reference
Q2	8.30	0.97 (0.82, 1.15) 0.760	0.89 (0.77, 1.03) 0.105	0.95 (0.81, 1.11) 0.525	1.76	1.09 (0.76, 1.57) 0.631	0.91 (0.65, 1.28) 0.587	1.05 (0.73, 1.51) 0.796
Q3	11.12	1.23 (1.06, 1.43) 0.006	0.92 (0.80, 1.06) 0.262	0.96 (0.82, 1.12) 0.579	1.97	1.19 (0.93, 1.54) 0.171	0.74 (0.56, 0.99) 0.042	0.87 (0.66, 1.15) 0.326
Q4	14.80	1.57 (1.36, 1.83) <0.001	1.03 (0.89, 1.18) 0.710	1.10 (0.95, 1.28) 0.198	3.30	1.77 (1.29, 2.43) <0.001	0.90 (0.64, 1.26) 0.539	1.19 (0.85, 1.68) 0.312
Q5	27.84	2.64 (2.28, 3.06) <0.001	1.27 (1.08, 1.51) 0.005	1.40 (1.17, 1.67) <0.001	6.11	3.02 (2.30, 3.96) <0.001	1.02 (0.73, 1.42) 0.913	1.34 (0.95, 1.88) 0.094
P for trend		<0.001	<0.001	<0.001		<0.001	0.490	0.026

Data are hazard ratios (HRs), 95% confidence intervals (95% CIs), and P-value.

Model I adjust for none.

Model II adjust for age, gender, and race.

Model III adjust for age, gender, race, smoking, SBP, HDL-cholesterol, total cholesterol, eGFR, comorbidities (hypertension, diabetes, and cardiovascular disease), and medicine use (antihypertensive drugs, hypoglycemic agents, lipid-lowering drugs, and antiplatelet drugs).