1. Université Paris Cité, IRD, INSERM, Ceped, F-75006 Paris , France
2. French Collaborative Institute on Migrations, CNRS , Aubervilliers , France
3. French Institute for Demographic Studies (INED) , Aubervilliers , France
4. Institute for Research on Sustainable Development (IRD) , Marseille , France
5. ERES, Social Epidemiology Unit, IPLESP, INSERM S1136 , Faculté de Médecine de Saint Antoine, Paris , France