Table 2.

Multivariate Cox Regression Analysis, Adjusted for Medical Comorbidities

Characteristic (Comparison Group)	Hazard Ratio	P Value	95% CI
Age	0.97	<0.001	0.97 to 0.972
Sex (male)
Female	0.83	<0.001	0.80 to 0.86
Race (white)
Black	0.68	<0.001	0.63 to 0.73
Hispanic	0.60	<0.001	0.56 to 0.64
Asian	0.58	<0.001	0.51 to 0.66
Other	0.77	<0.001	0.69 to 0.86
Insurance type (Medicare)
Medicaid	0.74	<0.001	0.67 to 0.81
Private	1.17	<0.001	1.11 to 1.22
Self-pay	0.52	<0.001	0.46 to 0.58
Other	0.83	<0.001	0.75 to 0.91
Median income quartile (1st quartile)
2nd	1.08	0.001	1.03 to 1.14
3rd	1.12	<0.001	1.07 to 1.17
4th	1.22	<0.001	1.16 to 1.27