Table 1: Characteristics of critically ill patients on the 1st and 7th day of admission to the surgical intensive care unit1.

CharacteristicsDay 1
( )
Day 7
( )

Gender (male/female)20/17
Age (y)66.00 2.66
Body weight (kg)62.79 2.51a60.95 1.85b
APACHE II score21.54 1.1320.19 1.48
Length of ventilatory dependency (d)22.38 2.60
Length of SICU day (d)17.60 1.47
Length of hospital stay (d)37.14 4.16
SICU mortality ( , %)6 (16.22%)
28-day mortality ( , %)8 (21.62%)

Values are means standard error of mean. SICU: surgical intensive care unit; APACHE II score: acute physiology and chronic health evaluation II score.
a,bValues are significantly different between day 1 and day 7 within the group; .