Demographic and other variables of the study population in Nordic countries (NOCCA) and Canada (CanCHEC) cohorts
| Variable | NOCCA | CanCHEC | ||
| Category | Number (%) | Category | Number (%) | |
| Population by country/province NOCCA (1961–2005) CanCHEC (1991–2010) | Denmark Finland Iceland Norway Sweden | 2 013 346 (13.5%) 3 404 800 (22.8%) 120 995 (0.8%) 2 562 674 (17.2%) 6 800 758 (45.6%) | Atlantic Quebec Ontario Manitoba Saskatchewan Alberta British Columbia Yukon, NW Territory and Nunavut | 162 135 (7.9%) 502 495 (24.5%) 756 295 (36.8%) 87 565 (4.3%) 77 855 (3.8%) 200 135 (9.7%) 243 735 (11.8%) 21 100 (1.2 %) |
| Population by sex | Male | 7 447 726 (49.97%) | 1 108 410 (54.03%) | |
| Female | 7 454 847 (50.03%) | 942 905 (45.96%) | ||
| Bladder cancer cases by country/province NOCCA (1991–2005) CanCHEC (1991–2010) | Denmark Finland Iceland Norway Sweden | 17 525 (23.79%) 11 109 (15.08%) 573 (0.78%) 13 798 (18.73%) 30 648 (41.61%) | Atlantic Quebec Ontario Manitoba Saskatchewan Alberta British Columbia Yukon, NW territory and Nunavut | 686 (8.4%) 2356 (28.8%) 2436 (29.8%) 350 (4.3%) 383 (4.7%) 839 (10.3%) 1082 (13.2%) 42 (0.5%) |
| Bladder cancer cases by age group (years) | 30–34 35–44 45–54 55–64 65–74 75+ | 15 (0.02%) 506 (0.69%) 3546 (4.82%) 12 241 (16.62%) 25 258 (34.29%) 32 087 (43.56%) | 25–34 35–44 45–54 55–64 65–74 | 396 (4.8%) 1365 (16.7%) 2558 (31.3%) 2972 (36.4) 879 (10.7%) |
| Bladder cancer cases by sex | Male | 54 737 (74.32%) | 6630 (81.1%) | |
| Female | 18 916 (25.68%) | 1540 (18.8%) | ||
CanCHEC, Canadian Census Health and Environment Cohort; NOCCA, Nordic Occupational Cancer study.