Pregnancy health document: obstetric and gestational history
Obstetric and gestational history data were collected via the Andalusian
Regional Government’s Pregnancy Health Document. Given to all pregnant
women in Andalusia at their first appointment with their midwife, it
collects information on previous pregnancies and births, and on the
patient’s gynaecological history and current pregnancy. Gestational age
was calculated from the date of last menstruation corrected for cycles
of 28 days, and subsequently corrected by ultrasound if
needed16. The result was used to time the assessments
made in the 16th and 34th w.g.