TABLE 4.

CLINICAL OUTCOMES

Variable	Prompted (n = 140)	Control (n = 125)	P Value
Mortality
APACHE IV–predicted hospital mortality, no. (%)	31.1 (22.2)	27.2 (21.7)	0.86
ICU mortality, no. (%)	9 (6.4)	17 (13.6)	0.050
Adjusted odds ratio (95% CI)	0.36 (0.13–0.96)	Reference	0.041
Hospital mortality, no. (%)	14 (10.0)	26 (20.8)	0.014
Adjusted odds ratio (95% CI)	0.34 (0.15–0.76)	Reference	0.008
SMR (95% CI)*	0.45 (0.25–0.76)	0.96 (0.63–1.4)
Length of Stay
APACHE IV–predicted LOS, d†	5.8 (2.0)	5.5 (2.0)	0.17
ICU LOS, d
Mean (SD)	3.5 (4.3)	4.9 (7.0)	0.07‡
Median (IQR)	1.9 (1.0–3.7)	1.9 (1.2–4.9)	0.45
Observed/predicted LOS ratio (95% CI)*	0.59 (0.48–0.69)	0.87 (0.68–1.06)	0.02‡

Definition of abbreviations: APACHE = Acute Physiology and Chronic Health Evaluation; CI = confidence interval; ICU = intensive care unit; IQR = interquartile range; LOS = length of stay; SMR = standardized mortality ratio.

^*Standardized mortality ratio (SMR) or standardized length of stay ratio was calculated as observed/predicted mortality or length of stay, respectively.

^†Mean (SD).

^‡Determined by Monte Carlo simulation.