Estimates (with 95% confidence intervals) of differentials in “normal” mortality and excess mortality from colorectal cancer among Norwegian men, according to register and census data for 1960–1991
| Number of deaths | Estimates | |
|---|---|---|
| †Arbitrarily chosen reference category; ‡This excess mortality, which is experienced for men in the reference categories, corresponds to a five year relative survival of 74%; *significant at the 0.05 level. | ||
| “Normal” mortality | ||
| Constant | 0.0025 deaths per person per month | |
| Educational level | ||
| 7–9 years† | 282421 | 1 |
| 10–12 | 80673 | 0.86* (0.85 to 0.86) |
| 13–16 | 17114 | 0.75* (0.74 to 0.77) |
| 17– | 6521 | 0.64* (0.62 to 0.66) |
| Age | ||
| 50–54 | 22402 | 0.24* (0.23 to 0.24) |
| 55–59 | 35849 | 0.39* (0.38 to 0.39) |
| 60–64 | 54194 | 0.63* (0.62 to 0.63) |
| 65–69† | 75718 | 1 |
| 70–74 | 94996 | 1.60* (1.59 to 1.62) |
| 75–79 | 103570 | 2.53* (2.51 to 2.55) |
| Period | ||
| 1960–69† | 111569 | 1 |
| 1970–79 | 130520 | 1.03* (1.02 to 1.03) |
| 1980–85 | 66898 | 0.99* (0.98 to 1.00) |
| 1986–91 | 77742 | 0.95* (0.94 to 0.96) |
| Excess mortality | ||
| Constant | 0.0051 deaths per person per month‡ | |
| Educational level | ||
| 7–9 years† | 7089 | 1 |
| 10–12 | 2555 | 0.95* (0.90 to 1.00) |
| 13–16 | 665 | 0.87* (0.80 to 0.96) |
| 17– | 292 | 0.83* (0.73 to 0.95) |
| Age | ||
| 50–54 | 539 | 0.95 (0.86 to 1.05) |
| 55–59 | 921 | 0.93 (0.86 to 1.01) |
| 60–64 | 1496 | 0.96 (0.89 to 1.03) |
| 65–69† | 2194 | 1 |
| 70–74 | 2660 | 1.09* (1.02 to 1.16) |
| 75–79 | 2791 | 1.19* (1.11 to 1.27) |
| Period | ||
| 1960–69† | 2284 | 1 |
| 1970–79 | 3376 | 0.80* (0.75 to 0.85) |
| 1980–85 | 2161 | 0.65* (0.61 to 0.70) |
| 1986–91 | 2780 | 0.65* (0.60 to 0.69) |
| Subsite | ||
| caecum, ascendence† | 1789 | 1 |
| transverse, descendence | 1412 | 1.09* (1.01 to 1.18) |
| sigmoideum | 2839 | 1.03 (0.96 to 1.10) |
| rectum | 4561 | 1.27* (1.19 to 1.35) |
| Stage | ||
| local† | 2630 | 1 |
| regional | 3735 | 2.42* (2.26 to 2.59) |
| distant | 4080 | 12.61* (11.82 to 13.44) |
| unknown | 156 | 5.24* (4.39 to 6.28) |
| Histological type/grade | ||
| adenocarcinoma, well differentiated† | 379 | 1 |
| adenocarc., moderately differentiated | 1911 | 1.20* (1.05 to 1.39) |
| (adeno) carc., poorly diff. | 830 | 2.37* (2.04 to 2.75) |
| other | 7481 | 1.50* (1.31 to 1.71) |