We treated as categorical variables: sex, ethnicity self-defined by the participant, presence of comorbidities the participant that reported being told by his physician that he/she had "diabetes" and/or "high cholesterol" was considered as having comorbidities and degree of schooling, with stratification in three categories: participants with complete Elementary School; complete High School and complete College/University.
Tratamos como variables categóricas: sexo; color/raza, autodefinida por el entrevistado; presencia de comorbilidades se consideró portador de comorbilidades al participante que declaró haber sido ya informado por un médico de ser portador de "diabetes" y/o "colesterol alto"; y escolaridad, con estratificación en tres categorías: participantes con hasta enseñanza básica completa, nivel medio completo y nivel universitario.