Table 4.

The parameters of the diagnostic methods between rectal tumors and healthy controls: the content of this table is supplemental data to Figure 1 and Figure 2.

Parameters	Hcy	CEA	Parallel diagnosis	Series diagnosis
AUC	0.707	0.688	0.711	0.518
Optimal critical value	14.45 mmol/l	1.45 ng/ml	0.50	0.50
95% CI	0.627–0.787	0.606–0.769	0.655–0.767	0.498–0.537
Specificity (%)	98.75	77.50	97.50	100
Sensitivity (%)	43.53	60.00	44.71	3.53

The contents of this table are supplemental data to Figure 1 and 2.