Patient characteristics at the first gynaecology outpatient visit for HMB (% and number unless otherwise stated)
| Full cohort (n=15 325) | |
| Age, mean (SD) in years | 42.3 (7.6) |
| Age groups | |
| 18–34 | 14.9 (2283) |
| 35–39 | 12.9 (1971) |
| 40–44 | 26.6 (4071) |
| 45–49 | 31.3 (4794) |
| ≥50 | 14.4 (2206) |
| Body mass index, mean (SD) in kg/m2 | 27.3 (5.4) |
| Body mass index, categories | |
| ≤25 | 39.6 (4681) |
| 25–30 | 31.7 (3739) |
| ≥30 | 28.7 (3392) |
| Missing | 3513 |
| Parity | |
| Nulliparous | 17.0 (2530) |
| Parous | 83.0 (12 338) |
| Missing | 457 |
| Number of reported comorbidities | |
| 0 | 66.3 (10 165) |
| 1 | 25.3 (3878) |
| ≥2 | 8.4 (1282) |
| Ethnicity | |
| White | 88.3 (12 614) |
| Asian or Asian British | 4.3 (607) |
| Black or black British | 5.4 (770) |
| Other | 2.0 (292) |
| Missing | 1042 |
| Socioeconomic deprivation (IMD) | |
| Quintile 1 (most deprived) | 23.5 (3418) |
| Quintile 2 | 21.7 (3159) |
| Quintile 3 | 20.2 (2944) |
| Quintile 4 | 18.7 (2720) |
| Quintile 5 (least deprived) | 15.8 (2304) |
| Missing | 780 |
HMB, heavy menstrual bleeding; IMD, Index of Multiple Deprivation.