A Fast and Reliable Method to Interpret Short-Term Mortality in Perforated Peptic Ulcer: Red Cell Distribution Width is Sensitive and Specific

Table 2

Sensitivity, specificity, positive likelihood ratio (+LR), negative likelihood ratio (LR), positive predictive value, and negative predictive value of RDW for mortality at the optimal cutoff level.

RDW	Sensitivity (95% CI)	Specificity (95% CI)	+LR	–LR	Positive predictive value (95% CI)	Negative predictive value (95% CI)
|>14.25	80.00 (51.91–95.67)	82.17 (75.27–87.81)	4.49	0.24	30.00 (21.96–39.49)	97.73 (93.97–99.16)