| Response | Total | |||
| Categories | Study group | Control group | ||
| Gestation cluster | 12/40 to 16 | 9 (2.3%) | 13 (3.3%) | 22 (5.5%) |
| 17/40 to 20/40 | 23 (5.8%) | 24 (6.0%) | 47 (11.8%) | |
| 21/40 to 24/40 | 47 (11.8%) | 50 (12.6%) | 97 (24.4%) | |
| 25/40 to 28/40 | 44 (11.1%) | 55 (13.9%) | 99 (24.9%) | |
| 29/40 to 32/40 | 39 (9.8%) | 32 (8.1%) | 71 (17.9%) | |
| 33/40 to 36/40 | 29 (7.3%) | 32 (8.1%) | 61 (15.4%) | |
| Parity | 0 | 69 (17.4%) | 75 (18.9%) | 144 (36.3%) |
| 1 | 52 (13.1%) | 55 (13.9%) | 107 (27.0%) | |
| 2 | 32 (8.1%) | 41 (10.3%) | 73 (18.4%) | |
| 3 | 18 (4.5%) | 14 (3.5%) | 32 (8.1%) | |
| 4 | 8 (2.0%) | 12 (3.0%) | 20 (5.0%) | |
| 5 | 5 (1.3%) | 6 (1.5%) | 11 (2.8%) | |
| 6 | 5 (1.3%) | 0 (0%) | 5 (1.3%) | |
| 7 | 2 (0.5%) | 3 (0.8%) | 5 (1.3%) | |
| Number of abortion | 0 | 178 (44.8%) | 195 (49.1%) | 373 (94.0%) |
| 1 | 9 (2.3%) | 11 (2.8%) | 20 (5.0%) | |
| 2 | 2 (0.5%) | 0 (0%) | 2 (0.5%) | |
| 3 | 1 (0.3%) | 0 (0%) | 1 (0.3%) | |
| 5 | 1 (0.3%) | 0 (0%) | 1 (0.3%) | |
| Gravidity | 1 | 68 (17.1%) | 77 (19.4%) | 145 (36.5%) |
| 2 | 48 (12.1%) | 50 (12.6%) | 98 (24.7%) | |
| 3 | 29 (7.3%) | 41 (10.3%) | 70 (17.6%) | |
| 4 | 25 (6.3%) | 17 (4.3%) | 42 (10.6%) | |
| 5 | 7 (1.8%) | 11 (2.8%) | 18 (4.5%) | |
| 6 | 4 (1.0%) | 7 (1.8%) | 11 (2.8%) | |
| 7 | 6 (1.5%) | 0 (0%) | 6 (1.5%) | |
| 8 | 4 (1.0%) | 3 (0.8%) | 7 (1.8%) | |
| Total | 191 (48.1%) | 206 (51.9%) | 397 (100.0%) | |