Table 1.

Overview of data sources

Database	Social Benefits National Registry (Cadastro Único—CadU)	Family Health Registry (Sistema de Cadastro da Estratégia de Saúde da Família—FHR)	Eletronic Medical Registry (Prontuário Eletrônico de Pacientes—EMR)	National Hospital Admission System (Sistema de Informações Hospitalares—SIH)	National Mortality Information System (Sistema de Informações sobre Mortalidade—SIM)a
Time period	2008–2014	2009–2016	2011–2017	2011–2016	1999–2016
Database size	1,680,700 registrations—1,679,320 individuals	3,732,688 registrations—3,594,623 individuals	17,764,475 consultations—16,808,685 single consultations	1,787,601 hospitalizations	2,263,964 deaths
Personal identifiers	Name; Date of birth; Mother’s name; Address; Social Security Number (Cadastro de pessoa física—CPF); National register for social benefit (Número de inscrição social—NIS)	Name; Date of birth; Mother’s name; Address; Social Security Number (Cadastro de pessoa física—CPF); National register for social benefit (Número de inscrição social—NIS)	Name; Date of birth; Social Security Number (Cadastro de pessoa física—CPF)	Name; Date of birth; Mother’s name; Address	Name; Date of birth; Mother’s name; Address
Content variables	Demographic characteristics, detailed socioeconomic, and housing data	Demographic characteristics, detailed socioeconomic, housing data, self-reported chronic diseases, a summary of health care used, vital status	Patient data (e.g., demographic characteristics), the reason for encounter, laboratory and test requests, treatment plans	Patient data (e.g., demographic characteristics); hospital data (e.g., public or private); hospitalization data (e.g., admission and discharge dates, intermediary unit use, diagnosis upon discharge)	Demographic characteristics, socioeconomic data, date of death, cause of death, data on mother in the case of fetal death, and death of children under 1 year

^aDatabase from Rio de Janeiro State; all others from Rio de Janeiro City