Table 2 Number of cases, person-years, rates and rate ratios for breast cancer mortality and incidence by age at entry among attenders and non-attenders
From: Balancing harms and benefits of service mammography screening programs: a cohort study
| Â | Â | Breast cancer mortality | |||
|---|---|---|---|---|---|
Age at entry | Exposure | BC deaths | Person years | BC mortality rate (per 10,000) | Adjusted rate ratio (*) |
50-59 | Non-attenders | 77 | 113 409 | 6.8 | 1 |
| Â | Attenders | 90 | 270 399 | 3.3 | 0.55 (0.41 - 0.75) |
60-69 | Non-attenders | 141 | 151 615 | 9.3 | 1 |
| Â | Attenders | 94 | 233 543 | 4.0 | 0.49 (0.38 - 0.64) |
| Â | Â | Breast cancer incidence | |||
Age at entry | Exposure | BC cases (**) | Person years | BC incidence rate (per 1,000) | Adjusted rate ratio (*) |
50-59 | Non-attenders | 321 | 105 635 | 3.0 | 1 |
| Â | Attenders | 838 | 249 896 | 3.4 | 1.15 (1.01 - 1.31) |
60-69 | Non-attenders | 461 | 142 547 | 3.2 | 1 |
| Â | Attenders | 745 | 216 309 | 3.4 | 1.10 (0.98 - 1.23) |