Development and external validation of models to predict acute respiratory distress syndrome related to severe acute pancreatitis

Table 4 Sensitivity, specificity, positive predictive value, negative predictive value for of the predictive models in combined cohort

SAP						ARDS
PA	SE	SP	Youden index	PPV	NPV	PA	SE	SP	Youden index	PPV	NPV
> 10%	0.91	0.63	0.54	0.43	0.96	> 5%	0.94	0.48	0.42	0.26	0.98
> 20%	0.82	0.83	0.65	0.59	0.94	> 10%	0.85	0.71	0.56	0.37	0.96
> 25%	0.78	0.88	0.66	0.66	0.93	> 18%	0.78	0.85	0.63	0.51	0.95
> 40%	0.71	0.93	0.64	0.75	0.91	> 30%	0.67	0.93	0.59	0.65	0.93
> 60%	0.51	0.97	0.48	0.84	0.87	> 50%	0.46	0.96	0.43	0.71	0.90
> 80%	0.32	0.99	0.30	0.88	0.83	> 70%	0.29	0.98	0.27	0.71	0.87
> 95%	0.14	1.00	0.14	0.91	0.79	> 85%	0.12	1.00	0.12	0.86	0.85

PA: Probability; SE: Sensitivity; SP: Specificity; PPV: Positive predictive value; NPV: Negative predictive value.