In a random sampling of 2893 households in Salvador, BA, Brazil, the birth rate was focused on, the fertility rate was found to be 96.87 per 1000 women of child-bearing age, and the birth rate was 32.97. For this survey, residential area and mother's occupation were used as income indicators which pointed out two inverse relationships: 1) an inverse association between the number of children and income was statistically significant; 2) the same was true in the mother's educational level versus number of children.
Birth rate; Vital statistics; Fertility