Studied population divided by age group, type of pregnancy, fetus gender, 5 min Apgar score, fetal birth weight and gestational age at birth in both study periods (A and B)
| Period A | Period B | |
| n (%) | n (%) | |
| Age group (years) | ||
| <18 | 918 (15.14%) | 694 (11.51%) |
| 19–29 | 3375 (55.68%) | 3398 (56.33%) |
| 30–39 | 1561 (25.75%) | 1726 (28.61%) |
| >40 | 207 (3.42%) | 214 (3.55%) |
| Type of pregnancy | ||
| Singleton | 5854 (96.58%) | 5837 (96.77%) |
| Twin | 207 (3.42%) | 192 (3.18%) |
| Trigeminal | 0 (0.00%) | 3 (0.05%) |
| Fetus gender | ||
| Male | 3172 (52.33%) | 3039 (50.38%) |
| Female | 2887 (47.63%) | 2993 (49.62%) |
| Ignored | 2 (0.03%) | 0 (0.00%) |
| 5th minute Apgar score | ||
| <7 | 85 (1.40%) | 97 (1.61%) |
| ≥7 | 5975 (98.58%) | 5928 (98.28%) |
| Uninformed | 1 (0.02%) | 7 (0.12%) |
| Fetal birth weight | ||
| <1500 g | 135 (2.22%) | 128 (2.2%) |
| 1500–2499 g | 661 (10.98%) | 670 (11.1%) |
| >2500 g | 5261 (86.80%) | 5234 (86.77%) |
| Gestational age at birth | ||
| <37 weeks | 838 (13.82%) | 851 (14.12%) |
| >37 weeks | 5177 (85.42%) | 5151 (85.39%) |
| Ignored | 46 (0.76%) | 30 (0.50%) |