Table 3

Descriptive and comparative statistics for colorectal cancer incidence and mortality, by study arm and sex

 AllMalesFemales
ScreeningControlScreeningControlScreeningControl
Number of persons180 210180 28289 71289 80790 49890 475
Person-years805 480805 693395 614395 851409 866409 843
Deaths
 All causes800079635486545325142510
 Colorectal cancer170164931067758
Patients with colorectal cancer
 Number of patients903811525477378334
 Incidence rate per 100 000 person-years112.4100.9133.1120.892.481.7
 Person-years2285180513181016967790
 Deaths2021901231277963
 Expected number of deaths*25.021.118.615.76.45.5
 Excess number of deaths†177.0168.9104.4111.372.657.5
 CRC incidence rate ratio (95% CI)1.11 (1.01 to 1.23)11.10 (0.97 to 1.25)11.13 (0.98 to 1.31)1
Mortality rates per 100 000
 All causes99398813871378613612
 Non-colorectal cancer causes97296813631351595598
 Colorectal cancer21.120.423.526.818.814.2
 Excess mortality due to CRC21.721.026.428.117.714.0
Mortality rate ratios 
 All causes1.00 (0.97 to 1.04)11.01 (0.97 to 1.05)11.00 (0.95 to 1.06)1
 Non-colorectal cancer causes1.00 (0.97 to 1.04)11.01 (0.97 to 1.05)10.99 (0.94 to 1.05)1
 Colorectal cancer1.04 (0.84 to 1.28)10.88 (0.66 to 1.16)11.33 (0.94 to 1.87)1
 Excess mortality due to CRC1.05 (0.84 to 1.30)10.94 (0.71 to 1.24)11.26 (0.88 to 1.80)1
  • *Calculated according to the mortality of colorectal cancer-free persons stratified by sex, age, calendar year, arm and participation status.

  • †The difference between the observed and the expected number of deaths.

  • CRC, colorectal cancer.