The 2015 Census was conducted by the General Directorate of Statistics (Direcção Geral de Estatística, GDE) of the Ministry of Finance.
Marriage patterns, breastfeeding practices, the incidence of abortion, and contraceptive prevalence are the major proximate determinants of fertility. The 2015 Census does not collect data on breastfeeding practices or prevalence of contraceptive methods. However, the census collects data on marital status patterns by age, sex, background characteristics (literacy, educational attainment, employment status) and geography.
In this report, marital status is classified as: never married, married, living together, widowed, divorced, and separated.