Table 2.

The association between DII and CHD in different logistics models.

	DII as a continuous variablea			DII as a nominal variableb
	OR	95% CI	p	OR	95% CI	p
Model 1	1.057	1.026–1.089	< 0.001	1.104	1.043–1.168	< 0.001
Model 2	1.065	1.031–1.101	< 0.001	1.116	1.050–1.188	< 0.001
Model 3	1.049	1.012–1.087	0.008	1.095	1.024–1.171	0.008

Model 1: Crude. Model 2: Adjusted for Model 1, age, sex, race and education. Model 3: Adjusted for Model 2, hypertension, diabetes, smoking, body mass index, glomerular filtration rate, and total cholesterol. OR, odds ratio; CI confidence interval.

^aOR was examined by per 1-unit increase of DII.

^bdivided into lower, middle, and higher DII groups based on the tertiles of the DII distribution.