Table 3

Results of the Italian multicentre study: observed versus expected incidence of colorectal cancer. Total number of study subjects 1693

SexPerson/years of follow upObserved cancersExpected cancersIncidence ratio and 95% CI
Males 8985412.90.31 (0.20–0.69); p<0.05
Females 52262 4.90.41 (0.22–4.00); NS
Total (M and F)14211617.70.34 (0.23–0.63); p<0.01