Table 1.

Sensitivity, specificity, positive and negative predictive values, and likelihood ratios of CIRRUS in the model creation dataset

Cut-off	Event/Total	Prevalence of cirrhosis/portal hypertension	Sensitivity	Specificity	PPV	NPV	PLR	NLR
CvRAG	931/16 967	0.05	0.55	0.99	0.71	0.97	43.02	0.45
CRvAG	931/16 967	0.05	0.64	0.98	0.63	0.98	29.15	0.37
CRAvG	931/16 967	0.05	0.77	0.94	0.43	0.99	12.81	0.24

CRAvG, crimson, red or amber test ‘vs’ green test result; CRvAG, crimson or red test ‘vs’ amber or green test result; CvRAG, crimson test ‘vs’ red, amber or green test result; NLR, negative likelihood ratio.; NPV, negative predictive value; PLR, positive likelihood ratio; PPV, positive predictive value.