In this section, Lifelines participants (or their parents) were asked about their own birth and early development. In addition, adult female participants were asked about their reproductive life, including menstruation, childbirth and menopause.
Information on postnatal diet (aside from breastfeeding) can be found here.

A large portion of the questions in this section were asked in the context of two additional assessments, ROAQ and NEXT.

Note that the object and the subject of the questions (i.e. the adult participant as a parent, the adult participant describing their own childhood, the underage participant being described by their parent) vary across and within the different subsections.

Variables are organized in the following subsections:

1. Menstruation
2. Contraception
3. Family planning
4. Fertility
5. Prenatal lifestyle
6. Prenatal environment
7. Prenatal medication
8. Folic acid use
9. Perinatal hospitalization
10. Peripartum body weight
11. Pregnancy complications
12. Pregnancy outcomes
13. Birth (of participant)
14. Birth (of offspring)
15. Postnatal health (of the child)
16. Postpartum health (of the mother)
17. Postnatal medication
18. Postnatal wellbeing
19. Breastfeeding
20. Infant diet (general)
21. Infant diet (FFQ)
22. Baby Bonding (MAAS)
23. Parenting
24. Early development (ASQ)
25. Early development (BITSEA)
26. Early development (IBQ)
27. Developmental coördination (DCD)
28. Gynecological surgery
29. Reproductive organ diseases
30. Menopausal symptoms (GCS)