Table 3

Patient-characteristics

Open format ICU

1996-1998

(N = 230)

Closed format ICU

2003-2005

(N = 228)

Mean difference (95% confidence interval)

P-value


Gender male

57%

52%

0.23


age

73 (12)

75 (11)

2 (-0.1 - 4.2)

0.06


APACHE II score

14 (6.1)

16 (8.6)

2.7 (1.0-4.5)

0.002


IRIS score

4.73 (0.87)

4.67 (0.87)

0.06 (-0.1 - 0.2)

0.5


Values are mean (sd) unless indicated otherwise. ICU: Intensive Care Unit; APACHE II: Acute Physiology and Chronic Health Evaluation II; sd: standard deviation; IRIS: Identification of Risk in Surgical patients.

van der Sluis et al. BMC Surgery 2011 11:18   doi:10.1186/1471-2482-11-18

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