Age (mixed sex) related cell counts for ER/PR site staining of nasal polyps
| Age group | Mean (SD) age | No of cases | Mean (SE) ER | Mean (SE) PR |
| ⩾60 | 65.8 (4.5) | 7 | 4.97 (1.61) | 4.12 (1.53) |
| 41–59 | 51.4 (5.6) | 18 | 6.21 (1.07) | 5.49 (1.09) |
| 16–40 | 30.6 (5.0) | 16 | 7.73 (1.11) | 6.97 (1.07) |
| ⩽15 | 13.7 (1.6) | 6 | 8.83 (3.13) | 7.73 (2.98) |
ER = oestrogen receptor; PR = progesterone receptor.