Table 1 The age distribution, cancer stage, and assigned treatment protocols for 15,419 female ER+ breast cancer patients
| Â | Â | All | Tamoxifen exposed | Tamoxifen unexposed |
|---|---|---|---|---|
All ER+ women | Â | 15419 | 7153 | 8266 |
Age-range | Â | Â | Â | Â |
| Â | 45-50 | 3377 | 1129 | 2248 |
| Â | 51-55 | 3127 | 1536 | 1591 |
| Â | 56-60 | 3317 | 1695 | 1622 |
| Â | 61-65 | 3229 | 1649 | 1580 |
| Â | 66-70 | 2369 | 1144 | 1225 |
Stage of cancer | Â | Â | Â | Â |
| Â | 1 | 6823 | 907 | 5916 |
| Â | 2 | 8596 | 6246 | 2350 |
Assigned tamoxifen treatment duration | Â | Â | Â | Â |
| Â | 180 days | 354 | 354 | Â |
| Â | 365 days | 990 | 990 | Â |
| Â | 730 days | 620 | 620 | Â |
| Â | 1825 days | 5039 | 5039 | Â |
| Â | none | 8266 | Â | 8266 |
| Â | missing | 150 | 150 | Â |
PD cases identified | Â | 35 | 15 | 20 |
Incidence Rate (cases/10,000 person-years) | Â | 3.38 | 4.05 | 3.01 |