Table 1 Characteristics of the study population (singleton pregnancies)
From: Impact of maternal age on obstetric and neonatal morbidity: a retrospective cohort study
Total 23,291 | < 25 | 25–34 | 35–39 | 40–44 | ≥ 45 | ||
N (%) | 2834 (12.2) | 14,815 (63.6) | 4480 (19.2) | 1085 (4.7) | 77 (0.33) | ||
Obesity (%) | 10.1 | 9.1 | 11.4 | 14.7 | 7.0 | ||
ART (%) | 0.5 | 3.5 | 8.5 | 15.4 | 44.2 | ||
Geographical origin Europe (%) | 49.2 | 64. | 65.0 | 65.2 | 63.5 | ||
pregnancies with “unfavourable” outcome (%) | 5.9 | 5.1 | 6.9 | 9.3 | 15.4 | ||
in utero foetal death | 0.6 | 0.9 | 1.2 | .1.5 | 2 | ||
medically induced abortion | 2.6 | 3.7 | 4.5 | 5.2 | 6.3 |