Table 1. Hierarchical classification system and subgroup numbers as spectra, samples, and patients.
| Tissue classification | Spectra (n) | Samples (n) | Patients (n) |
|---|---|---|---|
| Normal | |||
| Premenopausal | |||
| Proliferative | 250 | 25 | 13 |
| Early secretory | 80 | 8 | 4 |
| Mid secretory | 20 | 2 | 1 |
| Late secretory | 60 | 6 | 3 |
| Menstrual | 61 | 6 | 3 |
| On progesterone | 50 | 5 | 3 |
| Postmenopausal | |||
| Atrophic | 219 | 22 | 11 |
| Other | 40 | 4 | 2 |
| Cancer | |||
| Endometrioid | |||
| Grade 1 | 179 | 18 | 9 |
| Grade 2 | 140 | 14 | 7 |
| Grade 3 | 140 | 14 | 7 |
| Non-endometrioid | |||
| Uterine serous | 60 | 6 | 3 |
| Clear cell | 20 | 2 | 1 |
| Mixed | 40 | 4 | 2 |
| Carcinosarcoma | 80 | 8 | 4 |
| Adenosarcoma | 40 | 4 | 2 |
| Tumour adjacent | |||
| Endometrioid (adjacent) | |||
| Atrophic | 240 | 24 | 12 |
| Hyperplasia | 80 | 8 | 4 |
| Non-endometrioid (adjacent) | |||
| Atrophic | 200 | 20 | 10 |
| Hyperplasia | 0 | 0 | 0 |
Abbreviation: n=number.