Table 1.

Demographic data for study cohort

Demographic	Sample
Age (years)	62.6±15.9
Sex (M:F)	115:94
APACHE II (ICU admission)	16.7±6.1
Admission category
Medical	100 (48)
Emergency surgical	67 (32)
Elective surgical	42 (20)
Comorbidity
Cardiac disease	74 (35)
Chronic respiratory disease	58 (28)
Chronic renal disease	16 (8)
Immunocompromise	16 (8)
Chronic liver disease	11 (5)
Active malignancy	6 (3)

Data are presented as mean±SD or n (%) where appropriate. n=209.

APACHE II, Acute Physiology and Chronic Health Evaluation; F, female; ICU, intensive care unit; M, male.