Table 2.
Demographic and observation period of study population
| All possible cases, n | Male, n (%) | Age (years) at data extraction, mean (SD) | Age (years) at the time of granting ICD-10, mean (SD) | Observation period (days), mean (SD) | Observation period (days) person-years | |
| Lung cancer | ||||||
| Kurashiki Central Hospital | 2477 | 1728 (69.8) | 75.0 (9.9) | 72.8 (10.2) | 801.4 (626.7) | 1 985 024 |
| All hospitals | 19 861 | 13 136 (66.1) | 74.8 (10.2) | 73.5 (10.4) | 523.9 (552.4) | 10 405 993 |
| Breast cancer | ||||||
| Kurashiki Central Hospital | 1166 | 10 (0.9) | 67.0 (13.3) | 64.1 (13.3) | 1022.6 (650.8) | 1 192 400 |
| All hospitals | 18 289 | 131 (0.7) | 64.7 (14.1) | 62.6 (14.1) | 780.5 (618.6) | 14 274 791 |
| Colorectal cancer | ||||||
| Kurashiki Central Hospital | 1684 | 989 (58.7) | 73.6 (11.3) | 71.1 (11.6) | 930.5 (613.5) | 1 566 924 |
| All hospitals | 23 501 | 13 836 (58.9) | 74.1 (11.3) | 72.1 (11.5) | 770.6 (596.2) | 18 110 552 |
| Ovarian cancer | ||||||
| Kurashiki Central Hospital | 265 | 34 (12.8) | 66.4 (15.4) | 63.9 (15.5) | 896.2 (653.5) | 237 497 |
| All hospitals | 2592 | 145 (5.6) | 64.1 (14.9) | 62.3 (15.1) | 667.3 (581.1) | 1 729 551 |
| Bladder cancer | ||||||
| Kurashiki Central Hospital | 568 | 446 (78.5) | 77.6 (10.0) | 75.0 (10.5) | 991.3 (611.8) | 563 042 |
| All hospitals | 7408 | 5810 (78.4) | 76.9 (10.4) | 74.9 (10.6) | 799.9 (595.8) | 5 925 496 |
| Prostate cancer | ||||||
| Kurashiki Central Hospital | 3131 | 3057 (97.6) | 76.5 (8.4) | 71.9 (8.7) | 1703.1 (1118.3) | 5 332 446 |
| All hospitals | 32 136 | 28 690 (89.3) | 77.7 (8.9) | 74.2 (9.2) | 1341.3 (1041.6) | 43 105 126 |
ICD-10, International Classification of Diseases, 10th revision.