Table 4 Neoplasia detection rate as percentages of those screened (values given as percentages and the denominator (n) from which they are derived)
First round % (n)Second round % (n)Third round % (n)
Cancers
Total0.21 (167415)0.12 (164077)0.07 (175853)
Males0.31 (75724)0.16 (74686)0.10 (80624)
Females0.13 (91691)0.08 (89391)0.05 (95229)
Polyp cancer0.04 (167415)0.02 (164077)0.01 (175853)
Adenomas
Total0.65 (167415)0.52 (164077)0.28 (175853)
High-risk adenoma0.08 (167415)0.05 (164077)0.03 (175853)

  • Polyp cancers are included in the total cancer figures and given separately.

  • The decline in cancer detection rate round on round was statistically significant at the p<0.001 level, and the difference between males and females was statistically significant at the p<0.001 level in all rounds (χ2 test).