Women who give birth in a participating maternity unit or birth center during the study period.
Partner of a participating women: the partner must be designated by the mother, live with her at the time of birth, and only one partner can be included per mother.
Gestational age at birth: ≥22+0 weeks and/or birthweight ≥500 grams
Age: Participants must be 14 years or older.
Language Proficiency: Participants must have sufficient proficiency in one of Switzerland's main official languages (German, French, Italian) or English to ensure accurate communication and comprehension of study materials.
