Rising costs of intensive care and the ability to prolong the life of
critically ill patients creates a need to recognise early those patien
ts who will die despite treatment. We used changes in a modified APACH
E II score (organ failure score) to make daily predictions of individu
al outcome in 3600 patients. 137 patients were predicted to die and of
these, 131 (95.6%) died within 90 days of discharge from hospital (se
nsitivity 23.4%, specificity 99.8%); a false-positive diagnosis rate o
f 4.4%. 2 of the 6 survivors have subsequently died but 4 are alive wi
th good quality of life. Patients predicted to die stayed 1492 days in
intensive care and incurred 16.7% of total intensive care expenditure
and 46.4% of the cost of all patients that died. Median survival afte
r a prediction to die was 2 days, accounting for 62% of intensive care
patient days in this patient group, giving an effective intensive car
e cost per survivor of UK pound 129 651. If used prospectively, this a
lgorithm has the potential to indicate the futility of continued inten
sive care but at the cost of 1 in 20 patients who would survive if int
ensive care were continued.