Table 5.

Sensitivity and Specificity of the Parameters on Evaluating Ulcerative Colitis Activity Status by ROC Curve Analysis

	Cut-Off	Sensitivity	Specificity	AUC (95% CI)	P value
ESR (mm/h)	6.5	80.2%	66.7%	0.705 (0.498–0.8912)	=0.0526
CRP (mg/L)	5.2	51.3%	100%	0.721 (0.618–0.822)	< 0.001
PLT (109/L)	238.5	50.7%	88.9%	0.670 (0.502–0.837)	=0.0468
HGB (g/L)	104.4	90.9%	24.9%	0.588 (0.374–0.802)	=0.4187

Abbreviations: ROC, receiver-operating characteristics; AUC, area under the curve; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; PLT, platelet; HGB, hemoglobin.