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Proportion of DCIS in each age group
| Biopsies revealing DCIS | Biopsies revealing invasive carcinoma | Total biopsies | Total patients | DCIS percentage (%) and the 95% confidence interval | |
|---|---|---|---|---|---|
| Age < 50 | 110 | 264 | 374 | 353 | 29.4 (25.0,34.2) |
| 50 < =Age < =64 | 170 | 398 | 568 | 538 | 29.9 (26.3, 33.8) |
| Age > =65 | 132 | 401 | 533 | 493 | 24.8 (21.3,28.6) |
| Total | 412 | 1063 | 1475 | 1384 | 27.9 (25.7,30.3) |
