Distribution and grouping of histological diagnosis, hormone receptor status of malignant cases, and patient age
| Characteristics | N | % |
|---|---|---|
| ER, receptor; PR, progesterone receptor. | ||
| Group I | ||
| Normal | 11 | 9 |
| Non-proliferative fibrocystic change | 12 | 10 |
| Ductal or lobular hyperplasia | 9 | 8 |
| Group II | ||
| Atypical ductal or lobular hyperplasia | 11 | 9 |
| Ductal/lobular carcinoma in situ | 13 | 11 |
| Group III | ||
| Ductal carcinoma, grade I | 17 | 14 |
| Ductal carcinoma, grade II | 19 | 16 |
| Ductal carcinoma, grade III | 15 | 12 |
| Lobular carcinoma, grade I–III | 13 | 11 |
| Total specimens | 120 | 100 |
| Hormone receptor status (group III) | ||
| ER+ | 34 | 53 |
| ER− | 30 | 47 |
| PR+ | 33 | 52 |
| PR− | 31 | 48 |
| Mean age (years) | ||
| Group I | 54 (range, 22–68) | |
| Group II | 52 (range, 29–62) | |
| Group III | 59 (range, 32–90) | |
| Menopausal/postmenopausal | ||
| Group I | 25 | 78% |
| Group II | 20 | 83% |
| Group III | 60 | 92% |