Table 2.

Hazard Ratios (HR) and confidence intervals for NDVI by quartile in multivariable adjusted models.

	Model 1a			Model 2b			Model 3c
NDVI	HR	95%CI	P-trend	HR	95%CI	P-trend	HR	95%CI	P-trend
Quartile 1	--	--	.001			0.009			0.02
Quartile 2	0.90	(0.75, 1.08)		0.90	(0.75, 1.08)		0.91	(0.76, 1.10)
Quartile 3	0.79	(0.65, 0.94)		0.78	(0.64, 0.95)		0.79	(0.65, 0.96)
Quartile 4	0.77	(0.64, 0.92)		0.78	(0.63, 0.97)		0.80	(0.65,0.99)
NDVId	0.87	(0.78, 0.97)	.009	0.91	(0.80,1.03)	0.12	0.92	(0.81,1.05)	0.22

^aadjusted for age and sex.

^badjusted for age, sex, race (black/other), hispanic, smoking status (current, former, never), history of coronary artery disease, history of stroke, atrial fibrillation, heart failure, diabetes, dyslipidemia, hypertension, percent of people age 25+ without a high school diploma (tertiles) and median household income (quartiles).

^cadjusted for model 2 covariates and the log of distance to a road with >10,000 cars/day.

^dscaled to an IQR difference in NDVI (0.22).