| Parameters | Classification | Study group N (%) | Placebo N (%) | Total N (%) | X2 Fisher exact test | P value |
| Marital status | Married | 38 (31.7) | 52 (43.3) | 90 (75.0) | 0.006 | 0.063 |
| Single | 22 (18.3) | 8 (6.7) | 30 (25.0) | |||
| Total | 60 (50) | 60 (50) | 120 (100) | |||
| Types | Spontaneous | 29 (24.2) | 12 (10.0) | 41 (34.2) | 0.002 | 0.253 |
| Induced | 31 (25.8) | 48 (40.0) | 79 (65.8) | |||
| Total | 60 (50) | 60 (50) | 120 (100) | |||
| Booking status | Booked | 9 (7.5) | 7 (5.8) | 16 (13.3) | 0.789 | 0.395 |
| Unbooked | 51 (42.5) | 53 (44.2) | 104 (86.7) | |||
| Total | 60 (50) | 60 (50) | 120 (100) | |||
| Previous history of MVA | Yes | 25 (20.8) | 12 (10.0) | 37 (30.8) | 0.017 | 0.119 |
| No | 35 (29.2) | 48 (40.0) | 83 (69.2) | |||
| Total | 60 (50) | 60 (50) | 120 (100) | |||
| Pregnancy | Wanted | 30 (25) | 39 (32.5) | 69 (57.5) | 0.139 | 0.070 |
| Unwanted | 30 (25) | 21 (17.5) | 51 (42.5) | |||
| Total | 60 (50) | 60 (50) | 120 (100) |