Table 2.
Menstrual pattern within 12 months postpartum between Bakri balloon group vs control group
| Bakri balloon only (n = 39) | Control (n = 161) | p-value; MD; (95% CI) | |
|---|---|---|---|
| Duration of breastfeeding postpartum (months) | 4.41 (6.05); median 1.5 range 0–24 m | 3.25 (4.44); median 2.0 range 0–30 m | 0.176; 1.16 (− 0.52 to 2.84) |
| Return of menses after delivery (months) | 4.43 (4.68) | 4.95 (3.24) | 0.42; −0.51 (−1.77 to 0.74) |
| Menstrual pattern within 12 months postpartum | |||
| No return of menses | 0 | 1† | 1.00 |
| Cycle regularity | 0.47 | ||
| Regular 28 (±7) day cycles | 34 (87.2%) | 141 (88.1%) | |
| Short (< 21 day) or long (> 35 day) cycles | 3 (7.7%) | 16 (10.0%) | |
| Totally irregular cycles | 2 (5.1%) | 3 (1.9%) | |
| Duration of flow | 0.41 | ||
| Little flow < 2 days | 0 (0.0%) | 3 (1.9%) | |
| Normal flow (3–7 days) | 35 (89.7%) | 148 (92.5%) | |
| Prolonged flow (> 7 days) | 4 (10.3%) | 9 (5.6%) | |
| Amount of flow | 0.172 | ||
| Heavy | 6 (15.4%) | 23 (14.4%) | |
| Normal | 26 (66.7%) | 124 (77.5%) | |
| Scanty | 7 (17.9%) | 13 (8.1%) | |
| Presence of dysmenorrhoea | 0.46 | ||
| No dysmenorrhoea | 31 (79.5%) | 136 (85.0%) | |
| Mild | 8 (20.5%) | 22 (13.8%) | |
| Severe requiring medication | 0 (0.0%) | 2 (1.2%) | |
MD Mean difference, CI Confidence interval
†One patient with prolong secondary amenorrhoea was excluded from subsequent analysis