| Incidents | 15 to 39 years old | 40 years and over | P | ||
| Number | Frequency | Number | Frequency | ||
| Incidents occurring during the first trimester of pregnancy | |||||
| Clear egg pregnancy | 302 | 0.36 | 26 | 4.06 | p < 10−3 |
| Molar pregnancy | 134 | 0.16 | 08 | 1.25 | p < 10−3 |
| Vomiting during pregnancy | 1321 | 1.58 | 06 | 0.94 | p < 10−3 |
| Ovular detachment | 540 | 0.65 | 49 | 7.66 | p < 10−3 |
| GEU | 55 | 0.07 | 05 | 0.78 | p < 10−3 |
| Spontaneous abortion | 51 | 0.06 | 11 | 1.72 | p < 10−3 |
| Induced abortion | 745 | 0.89 | 00 | 00.00 | p < 10−3 |
| Cervico-isthmic gape | 723 | 0.86 | 38 | 5.94 | p < 10−3 |
| None | 79,723 | 95.37 | 499 | 77.97 | p < 10−3 |
| Total | 83,594 | 82.26 | 640 | 12.19 | p < 10−3 |
| Incidents occurring during the 2nd trimester of pregnancy | |||||
| Urinary infection | 942 | 1.13 | 33 | 5.16 | p < 10−3 |
| Cervical gape | 356 | 0.42 | 36 | 5.63 | p < 10−3 |
| Threat of abortion | 188 | 0.22 | 23 | 3.59 | p < 10−3 |
| Threat of premature birth | 266 | 0.32 | 39 | 6.09 | p < 10−3 |
| Anemia | 156 | 0.19 | 16 | 2.50 | p < 10−3 |
| Pregnancy vomiting | 398 | 0.48 | 05 | 0.78 | p < 10−3 |
| Diabetes | 81 | 0.10 | 46 | 7.19 | p < 10−3 |
| Metrorrhagia | 1054 | 1.26 | 73 | 11.72 | p < 10−3 |
| None | 80,153 | 95.88 | 367 | 57.34 | p < 10−3 |
| Total | 83,594 | 100 | 640 | 100 |
|
| Incidents occurring during the 3rd quarter | |||||
| Placenta previa | 745 | 0.89 | 46 | 7.19 | p < 10−3 |
| HRP | 350 | 0.42 | 58 | 9.06 | p < 10−3 |
| MAP | 410 | 0.49 | 39 | 6.09 | p < 10−3 |
| Urinary infection | 741 | 0.89 | 33 | 5.16 | p < 10−3 |
| Metrorrhagia | 928 | 1.11 | 75 | 11.72 | p < 10−3 |
| Diabetes | 45 | 0.05 | 46 | 7.19 | p < 10−3 |
| Pre-eclampsia | 356 | 0.43 | 11 | 1.72 | p < 10−3 |
| Eclampsia | 213 | 0.25 | 01 | 0.15 | p < 10−3 |
| Premature delivery | 2250 | 2.69 | 123 | 19.22 | p < 10−3 |
| None | 77,556 | 92.78 | 208 | 32.50 | p < 10−3 |
| Total | 83,594 | 100 | 640 | 100 |
|