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Table 3 Performance of the models and SEPT9 for advanced neoplasia detection in the model validation cohort

From: Serum methylation of GALNT9, UPF3A, WARS, and LDB2 as noninvasive biomarkers for the early detection of colorectal cancer and advanced adenomas

 

Advanced Neoplasia classification

AA detection %

CRC detection %

AUC (95% CI)

Specificity % (95% CI)

Sensitivity % (95% CI)

NPV % (95% CI)

PPV % (95% CI)

D-AA

P-AA

All

Stage I

Stage II

Stage III

Stage IV

All

GALNT9, UPF3A

0.896 (0.835–0.958)

100 (91–100)

78.8 (67–88)

73.6 (60–85)

100 (93–100)

87

68.4

78.6

87.5

100

100

33.3

79.2

GALNT9, UPF3A, WARS, LDB2

0.864 (0.798–0.931)

97.4 (87–100)

62.1 (49–74)

60.3 (47–72)

97.6 (87–100)

78.3

52.6

66.7

37.5

75

100

33.3

54.2

20 methylation biomarkers, sex

0.553 (0.407–0.639)

17.9 (8–34)

92.4 (83–97)

58.3 (28–85)

65.6 (55–75)

91.3

94.7

92.9

87.5

100

100

83.3

91.7

SEPT9

0.504 (0.389–0.618)

100 (91–100)

15.1 (8–26)

41.1 (31–52)

100 (69–100)

4.3

10.5

7.1

0

37.5

50

50

29.2

  1. The model validation cohort includes 105 patients. AA and CRC detection rates are also shown. No significant differences were found between the detection of distal versus proximal AA (Fisher’s exact test p value > 0.05). ROC curves and performance parameters were derived by the leave-one-out cross-validation approach. AUC: area under the curve; AA: advanced adenoma; CRC: colorectal cancer; NPV: negative predictive value; PPV: positive predictive value; GALNT9: CG3; UPF3A: CG15; WARS: CG5; and LDB2: CG24