Pre-admission functional status impacts the performance of the APACHE IV model of mortality prediction in critically ill patients

Table 5 Comparisons of area under the curve between patients grouped by functional status - patients with APACHE IV predicted mortality ≥10%

					P values for comparison between functional status groups
Functional status	Dead	Alive	Area	SE	Independent	Partly dependent	Fully dependent
Independent	707	1952	0.833	0.009	1.0
Partly dependent	492	802	0.797	0.013	0.012	1.0
Fully dependent	56	99	0.718	0.044	0.006	0.063	1.0

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