Use of the Vascular Overload Index to Predict Cardiovascular Disease in a Rural Population of China

Table 2

Multivariate Cox regression analyses for VOI and CVD.

Variables	Events	HR (95% CI) crude model	value	HR (95% CI) model 1	value	HR (95% CI) model 2	value
VOI (per SD change)	579	1.756 (1.645–1.876)	<0.001	1.446 (1.344–1.557)	<0.001	1.358 (1.234–1.494)	<0.001
Quartiles of VOI
Q1	48	1		1		1
Q2	101	2.079 (1.474–2.931)	<0.001	1.773 (1.256–2.502)	0.001	1.671 (1.177–2.371)	0.004
Q3	138	2.872 (2.068–3.989)	<0.001	1.996 (1.431–2.783)	<0.001	1.566 (1.019–2.406)	0.041
Q4	292	6.218 (4.582–8.439)	<0.001	3.312 (2.413–4.547)	<0.001	2.466 (1.581–3.846)	<0.001
for trend			<0.001		<0.001		<0.001

Abbreviations: VOI: vascular overload index; HR: hazard ratio; 95% CI: 95% confidence interval.