Table 3.

Factors associated with 30-day and 1-year mortality in patients with severe community-acquired pneumonia in Cox proportional hazards regression analyses (n=57)

Variable	Univariate			Multivariate
	HR	95% CI	P value	HR	95% CI	P value
30-day mortality
BI	1.00	0.99 to 1.02	0.899	_	_	_
BMI	1.04	0.92 to 1.18	0.507	_	_	_
Malnutrition	0.73	0.24 to 2.23	0.581	_	_	_
Frailty	26.61	0.04 to 16 017.0	0.315	_	_	_
CCI	1.21	1.02 to 1.43	0.028	1.21	1.02 to 1.43	0.028*
1-year mortality
BI	0.99	0.98 to 1.00	0.046	1.00	0.99 to 1.02	0.875
BMI	0.99	0.92 to 1.08	0.854	_	_	_
Malnutrition	0.86	0.77 to 0.97	0.010	1.05	0.89 to 1.25	0.545
Frailty	2.82	1.70 to 4.68	<0.001	2.87	1.58 to 4.96	<0.001*
CCI	1.24	1.10 to 1.40	0.001	1.16	1.01 to 1.34	0.034*

Data are estimated HR and 95% CIs of the explanatory variables in the 1-year mortality group. Data were adjusted for age, sex, disability, malnutrition and comorbidities.

*P<0.05.

BI, Barthel Index; BMI, body mass index; CCI, Charlson’s Comorbidity Index.