temps (durée) (1) statistiques (1) risque (1) pauvreté (1) modèle (1) exposition (1) âge (1) comparaison (1) Development (1) Context (1) Comparison (1) Aspect (1) Methods (1) Statistics (1) Birth (1) Time (1) Statistics (1) Social mobility (1) Risk (1) Regression analysis (1) Pregnant women (1) Poverty (1) Poor (1) Parturition (1) Modeling (1) Life (1) Labor (Obstetrics) (1) Families (1) Example (1) Children (1)