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Age distribution of the study population and number with a first degree family member with breast cancer. Values are numbers (percentages)
| Cases (n=987) | Controls (n=987) | ||||
|---|---|---|---|---|---|
| Age (years) | |||||
| <30 | 61 (6.2) | 55 (5.6) | |||
| 30-49 | 455 (46.1) | 462 (46.8) | |||
| 50-69 | 383 (38.8) | 391 (39.6) | |||
| ⩾70 | 88 (8.9) | 79 (8.0) | |||
| History of breast cancer | 55 (5.6) | 55 (5.6) | |||
