Table 2.
Menstrual and niche characteristics
| Parameter | Baseline | 6 months | P‐value |
|---|---|---|---|
| Bleeding characteristics | |||
| Days of clear red blood loss during menstruation | 4 (3–5) | 4 (3–5) | 0.81 |
| Total days of spotting (postmenstrual spottinga) | 9 (6–14) | 2 (0–4) | <0.01 |
| Intermenstrual spotting (days) | 5 (1–10) | 0 (0–0) | <0.01 |
| Discomfort due to spotting (VAS 0–10) | 7.2 (5.0–9.0) | 0 (0–3.0) | <0.01 |
| Dysmenorrhoea (VAS 0–10) | 6.0 (4.0–8.0) | 4.0 (0–7.0) | <0.01 |
| Use of hormonal medication | |||
| Oral contraception | 13 (15.7%) | 19 (26.8%) | |
| Mirena intrauterine device | 1 (1.2%) | 0 | |
| Gonadotrophin‐releasing hormone agonist | 0 | 1 (1.4%) | |
| Continuous oral contraception | 0 | 2 (2.8%) | |
| Pregnancy | |||
| Pregnant | 2 | ||
| Niche characteristics | |||
| Number of women | 101 | 87 | |
| Position of uterus | |||
| Anteroverted | 35 (36.8%) | 40 (56.3%) | <0.01 |
| Stretched | 12 (11.9%) | 12 (16.9%) | 0.66 |
| Retroverted | 41 (43.2%) | 18 (25.4%) | <0.01 |
| Extreme retrovertedb | 7 (7.4%) | 1 (1.4%) | 0.77 |
| Median depth niche (mm) | 9.9 (7.2–13.4) | 4.2 (2.6–6.7) | <0.01 |
| Median residual myometrial thickness (mm) | 1.2 (0.8–1.7) | 5.3 (4.0–6.9) | <0.01 |
| Intrauterine fluid | 42 (45.7%) | 6 (6.5%) | 0.08 (OR 0.18; 95% CI 0.02–1.46) |
Data are reported as median (IQR) or as n (valid %). All menstrual characteristics are given for women with postmenstrual spotting at baseline, except for dysmenorrhoea. Dysmenorrhoea is reported for all women.
a
Postmenstrual spotting is defined as two or more days of intermenstrual spotting, or two or more days of brownish discharge immediately after the menstrual period when the total period of the menstrual bleeding exceeded 7 days.
b
Extreme retroverted was defined as a position of the uterus at an angle of ≤45 degrees with the cervix.