Maternal Age and Pregnancy, Childbirth and the Puerperium: Obstetric Results

Delaying maternity is becoming more common, resulting in questions regarding the influence age may have on obstetric results. Therefore, we proposed the objective to determine the association between maternal age and different health variables during pregnancy, childbirth and the puerperium. We conducted an observational study in Spain with primiparous women in which data was collected on sociodemographic, health and obstetric variables. Crude and adjusted mean differences were calculated with their corresponding 95% confidence intervals. The study included a final sample of 373 women. The mean age of women presenting with hypertension during pregnancy was 34.54 years (95% CI: 31.80-37.27) compared with a mean of 30.11 (95% CI: 29.56-30.66) in women that did not (p = 0.002). Women who had a eutocic delivery were also younger: 29.17 years (95% CI: 28.48-29.86) compared with 31.90 years (95% CI: 31.05-32.74; p < 0.001) for those that had a dystocic delivery. The duration of dilatation was longer in those ≥35 years (p = 0.001). In conclusion, an advanced maternal age is associated with a higher incidence of pathology during pregnancy and dystocic labor.