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Table 4 The levels of M2-PK in tumor-/ polyp-bearing patients with controls in stool and plasma samples

From: Expression of tumor pyruvate kinase M2 isoform in plasma and stool of patients with colorectal cancer or adenomatous polyps

Sample type

Lesion type

Chi-squared p value

Sensitivity

Specificity

Positive Predictive value

Negative predictive value

Cut-off value of 4 U/ml

Stool

Tumor

0.0001

100%

68%

52.7%

100%

Control

Polyp

0.0001

87%

68%

65%

88%

Control

Cut-off value of 15 U/ml

Plasma

Tumor

0.0001

98%

74%

75%

98%

Control

Polyp

0.0001

98%

74%

74%

98%

Control