Table 2 Predictive value of positive test of fecal occult blood test according to colonoscopy or double-contrast barium enema results.

From: Fecal Occult Blood Test Results of the National Colorectal Cancer Screening Program in South Korea (2006–2013)

(%)

polyp

suspicious cancerous lesion*

cancer

Total

21.4

42.6

1.3

Gender

 Male

18.2

50.7

1.6

 Female

24.8

33.8

1.0

Age group

 50–59

23.4

38.2

0.8

 60–69

20.3

44.9

1.5

 over 70

18.4

49.0

2.2

  1. *Suspicious cancer lesions were categorized in the database based on individual physicians’ descriptions to express wide spectrum between definitive polyp and definitive cancer, possibly including inflammatory or high-grade dysplastic lesions that required further biopsy procedure.
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