Table 4.

Diagnostic screening tests and ROC curve results for pectoralis, back and total skeletal muscle area (mm²) measurements for mortality.

	Diagnostic Scan					ROC Curve		p
	Cut off	Sensitivity	Specificity	Positive Predictive Value	Negative Predictive Value	Area	95% CI
Pectoralis m.	≤2800	51.85	74.10	28.00	88.79	0.680	0.560-0.800	0.003**
Back m.	≤5400	51.85	69.29	24.56	88.18	0.664	0.548-0.778	0.007**
Total m.	≤8000	48.14	73.57	26.00	88.03	0.687	0.564-0.804	0.003**

CI: Confidence Interval.