Table 4.

Age-stratified Cox regression results on mortality risk factors

	Covariate	HR(95% CI)	p
<60	Sex (Male)	1.513 (1.142–2.005)	0.004
	Noise (5dB)	1.002 (0.737–1.361)	0.992
	NO2 (scaled)	1.061 (0.936–1.202)	0.357
	NDVI (scaled)	0.969 (0.855–1.098)	0.619
	Low insurance	1.012 (0.649–1.579)	0.957
60	Sex (Male)	0.956 (0.849–1.076)	0.457
	Noise (5dB)	1.211 (1.038–1.414)	0.015
	NO2 (scaled)	1.013 (0.947–1.083)	0.712
	NDVI (scaled)	0.990 (0.931–1.053)	0.754
	Low insurance	0.823 (0.65–1.043)	0.107