Table 1 Epidemiological characteristics of the patients

Patient episodes (n)

1,029

Age (years; mean ± SD)

57 ± 20.8

Sex (male; n [%])

626 (62%)

Admission type (n [%])

   Scheduled surgery

211 (20%)

   Emergency admissions

808 (78.5%)

SOFA (mean ± SD)

   1st day: all

5.45 ± 3.8

   1^st day: survivors^a

5.3 ± 3.4

   1^st day: nonsurvivors^b

8.9 ± 3.7

ICU length of stay (median [IQR])

2 (1 to 7)

ICU mortality (n [%])^c

162 (17.6%)

Readmissions (n [%])

72 (7.5%)

Readmission mortality (n [%])

16 (23%)