Table 1.

Characteristics of patients upon ICU admission and the mortality rate (n = 123)

Variable	Survival (n = 48)	Non-survival (n = 75)	p
Age (years), (median, IQR)	62 (46–75)	54 (43–73)	0.18**
Pre-ICU stay (days),(mean ± SD)	3.8 ± 5.7	2.9 ± 4.9	0.11**
Duration of hospitalization (days) (mean ± SD)	21.5 ± 13.8	12.7 ± 15.4	< 0.01*
Duration of ICU stay (day) (median, IQR)	18 (13–31)	7 (3–16)	0.03**
APACHE II score (mean ± SD)	18.0 ± 5.8	26.6 ± 7.9	< 0.01*
SOFA score (mean ± SD)	9.1 ± 2.9	11.6 ± 3.6	< 0.01*
Mechanical Ventilation (n, %)	32/48 (66.7)	66/75 (88.0)	< 0.01*
Days of ventilation (median, IQR)	5 (3–12)	4(1–15)	0.15**
Sites of infection	Prevalence	Mortality
Gastrointestinal tract	56.1%	66.7%
Respiratory tract	21.1%	61.5%
Urinary tract	7.3%	44.4%
Others	15.4%	47.2%

(*) Student’s t-test, (**) Mann–Whitney test, IQR: interquartile range, SD: standard deviation