Table 1.
Characteristics of survivors and controls.
| Survivors (N = 11,671) | Controls (N=23,342) | |||
|---|---|---|---|---|
| Age at diagnosisa | n | % | n | % |
| 18 to 44 | 1583 | 14% | 3166 | 14% |
| 45 to 59 | 4920 | 42% | 9840 | 42% |
| 60 to 74 | 4058 | 35% | 8116 | 35% |
| 75 to 89 | 1110 | 10% | 2220 | 10% |
| Year of diagnosisa | ||||
| 2000–2005 | 2518 | 22% | 5036 | 22% |
| 2006–2009 | 3915 | 34% | 7830 | 34% |
| 2010–2015 | 5238 | 45% | 10,476 | 45% |
| Follow-up in period | ||||
| 1–4 years after diagnosisa | 8042 | 69% | 16,084 | 69% |
| 5–14 years after diagnosisa | 7442 | 64% | 14,884 | 64% |
| Tumour stage | ||||
| I | 5579 | 48% | ||
| II | 4841 | 42% | ||
| III | 1251 | 11% | ||
| Lateralisation | ||||
| Left | 5904 | 51% | ||
| Right | 5764 | 49% | ||
| Unknown | 3 | 1% | ||
| Type of surgery | ||||
| No surgery | 190 | 2% | ||
| Breast conserving | 6772 | 58% | ||
| mputation | 4686 | 40% | ||
| Unknown/Other | 23 | 0% | ||
| Axillary dissection | 4519 | 39% | ||
| Radiotherapy | 8116 | 70% | ||
| Chemotherapy | 5059 | 43% | ||
| Hormone therapy | 6149 | 53% | ||
a
For controls: after diagnosis of breast cancer of (matched) survivor.