Independent variables | Levels | |
---|---|---|
Per patient | Room number | A(1), B(3), C(4), D(2), E(2), F(2), G(6) and H(2) |
Gender | Male(9) and female(13) | |
Age | 34~80; mean 57.3 | |
ICU admission type | Medical(10), surgery(9) and trauma(3) | |
APACHE II | 9~34; mean 19.0 | |
Per day | IsWeekend | Weekday(69) and weekend(19) |
Day count | 1,2,3 and 4 | |
(Day count) 2 | 1,4,9 and 16 | |
(Day count) 3 | 1,8,27 and 64 |