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Table 6 ROC analysis for the risk score and recurrence rate (n =1111)

From: Metabolic factors accelerate colorectal adenoma recurrence

Risk score

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

Recurrence ratea

0

100.0

0.0

42.4

100.0

7.5 (6/80)

1

98.7

11.6

45.1

92.5

16.4 (30/183)

2

92.4

35.5

51.3

86.3

22.4 (43/192)

3

83.2

58.8

59.8

82.6

29.2 (35/120)

4

75.8

72.0

66.6

80.2

50.0 (57/114)

5

63.7

80.9

71.1

75.2

54.6 (72/132)

6

48.4

90.3

78.6

70.4

68.6 (70/102)

7

33.6

95.3

84.0

66.1

79.0 (79/100)

8

16.8

98.6

89.8

61.7

88.1 (59/67)

9

4.3

99.8

95.2

58.6

93.8 (15/16)

10

1.1

100.0

100.0

57.9

100.0 (5/5)

  1. aRecurrence rate during the 2-year period after the initial colonoscopy (%) (number of cases showing recurrence/total number of cases, for each risk score).