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Table 2 Demographic data for all patients admitted during the study period ( n= 1,524): data are presented as number (percentage) and mean (SD) or median (IQR)

From: Construct validity of the Chelsea critical care physical assessment tool: an observational study of recovery from critical illness

Age in years 58 (19.1)
Male 773 (50.6%)
Female 751 (49.2%)
Number receiving mechanical ventilation 691 (45.3%)
Mean ICU length of stay in days 6.8 (12.9)
Median ICU length of stay in days 2.6 (1–7.1)
Mean hospital length of stay in days 31.8 (77.7)
Median hospital length of stay in days 14 (6–30)
Survival at ICU discharge 1,331 (87.2%)
Mortality in ICU 188 (12.3%)
Median admission APACHE II 15 (10–20)
Referring specialty  
Surgery 673 (44.1%)
Obstetrics and gynecology 88 (5.8%)
Medicine 485 (31.8%)
HIV/GUM 48 (3.1%)
Interhospital critical care transfer 94 (6.2%)
Other 139 (9.1%)