Table 4.

Survival analysis showing hazard ratios for death (n=1594)

Variable	Univariate			Multivariable
	Hazard Ratio	95% Confidence Interval	P value	Hazard Ratio	95% Confidence Interval	P value
Demographics
Age (per 10 years)	1.67	1.53 to 1.81	<0.001	1.86	1.68 to 2.06	<0.001
Sex (reference: female)	1.17	0.94 to 1.44	0.16	1.24	0.99 to 1.55	0.06
Race (reference: White)	0.89	0.71 to 1.12	0.33	1.01	0.80 to 1.28	0.92
PMHx
HTN	1.69	1.35 to 2.11	<0.001	1.07	0.83 to 1.38	0.60
DM	1.45	1.18 to 1.77	<0.001	1.22	0.97 to 1.52	0.08
ESRD	0.97	0.55 to 1.68	0.90	1.36	0.78 to 2.40	0.28
Illness severity
Pressors	1.81	1.44 to 2.26	<0.001	1.98	1.53 to 2.55	<0.001
Mechanical Ventilation	1.24	0.99 to 1.55	0.06
AKI requiring RRT	1.27	0.98 to 1.64	0.07
Labs
C-reactive protein (per 10 mg/L)	1.03	1.02 to 1.04	<0.001	1.01	1.00 to 1.03	0.03
Hypermagnesemiaa	2.14	1.73 to 2.64	<0.001	2.03	1.63 to 2.54	<0.001

PMHx, Past medical history; HTN, hypertension; DM, xx.

^aDefined as median (Mg) > upper limit of normal (2.4 mg/dl).