Abstract P67 Table 1

Summary of test characteristics of MRC-SS

Test characteristic	ICU mortality		ICU LOS (≤14; >14 days)		Hospital mortality		Hospital LOS (≤28; >28 days)
Test characteristic	UTC	ICU-AW	UTC	ICU-AW	UTC	ICU-AW	UTC	ICU-AW
Sensitivity	0.69	0.88	0.22	0.93	0.56	0.81	0.17	0.84
Specificity	0.84	0.28	0.64	0.41	0.84	0.29	0.56	0.41
PPV	0.62	0.15	0.28	0.54	0.69	0.27	0.28	0.67
NPV	0.88	0.94	0.57	0.88	0.75	0.82	0.42	0.65

UTC (n=29). MRC-SS <48 (n=48). MRC-SS ≥48 (n=17).
ICU, Intensive Care Unit; ICU-AW, intensive care unit-acquired weakness; LOS, length of stay; NPV, negative predictive value; PPV, positive predictive value; UTC, unable to complete 4 one-stage commands.