Table 3.

Factors associated with 45-day mortality in MERS patients

Factor	P	HR	95% CI for HR		P	aHR	95% CI for aHR
Gender
Male		1.0				1.0
Female	0.081	0.8	0.617	1.029	0.858	1.0	0.787	1.334
Age
<30 years		1.0				1.0
30–59 years	0.009*	2.3	1.233	4.249	0.328	1.4	0.730	2.571
60–65 years	0.001*	3.9	1.988	7.500	0.171	1.6	0.813	3.204
>65 years	0.001*	6.1	3.292	11.261	0.013*	2.3	1.187	4.280
Region
Republic of Korea or other countries		1.0				1.0
Middle East	0.018*	3.3	1.233	9.014	0.017*	4.1	1.288	13.076
Saudi Arabia	0.001*	5.3	2.349	11.835	0.002*	5.0	1.856	13.581
Healthcare worker
Yes		1.0				1.0
No	0.001*	11.1	4.580	26.833	0.001*	5.2	2.056	13.025
Comorbidity
No		1.0				1.0
Yes	0.001*	5.5	3.624	8.352	0.001*	2.7	1.710	4.273
Symptomatic
No		1.0				1.0
Yes	0.001*	7.1	2.935	17.175	0.011*	3.2	1.306	7.730
Source of infection
Household		1.0				1.0
Camels	0.001*	4.2	2.093	8.355	0.010*	2.5	1.254	5.091
Healthcare-associated MERS	0.001*	3.6	1.823	7.061	0.001*	3.6	1.790	7.078
Unknown	0.001*	4.6	2.316	9.085	0.002*	3.0	1.502	5.943

*Significant at α  =  0.05; HR, unadjusted hazard ratios; aHR, adjusted hazard ratios.