Table 3: Comparison of ICU mortality prediction models based on mean score and area under the receiver operator curve for 89 nonagenarians admitted to surgical ICU between 2000 and 2010.

Prediction modelsMortality group scores
(mean ± SD)
(16%)
Survivor group scores
(mean ± SD)
(84%)
Area under ROC curve
(95% CI)
value

SAPS II 0.75 (0.60, 0.89)
SAPS III 0.81 (0.70, 0.92)
APACHE II 0.74 (0.59, 0.88)

SD: Standard deviation, ROC: receiver operator curve, CI: Confidence Interval, : number of patients, SAPS: standardized Acute Physiology Score, APACHE: Acute Physiology and Chronic Health Evaluation.