Table 4.

An abridged table of the Simplified Acute Physiology Scores for ICU patients according to presence of infection on ICU admission and/or ICU-acquired infection

	Infection state
Patient no.	Noinfection (group 1)	Infection on admission (group 2)	ICU-acquired infection (group 3)	On admission and ICU-acquired infection (group 4)
1	37.9	39.9	28.1	34.5
2	19.0	21.3	29.1	41.5
3	30.4	19.4	30.0	40.1
4	31.4	24.6	34.3	53.1
5	44.4	51.5	32.4	46.3
↓	↓	↓	↓	↓
100	25.3	30.2	27.4	39.5
Sample mean	35.2	39.5	39.4	40.9
Sample standard deviation	14.5	15.1	14.1	14.1

ICU, intensive care unit.