translate English to French: The data also made it possible to observe that the infant survival rate for the first birth was lower for women who gave birth before the age of 20 than for women who had their first child after the age of 20.
Son objectif est de produire une information explicative sur le phénomène de la fécondité des adolescentes, particulièrement sur son importance, ses taux de changement, ses tendances, etc.