Social, demographic and toxicological variables:Age,gen-der, health insurance regime subsidized or contributive, socio-economic bracket low, medium, high, education primary, secondary, higher, place of residence urban or rural, cigarette smoking, use of psychoactive substances, NSAIDS, steroids and anti-depressants.
Edad, sexo, régimen de salud subsidiado o contributivo, nivel socioeconómico bajo, medio, alto, nivel educativo primaria, secundaria, superior, residencia urbana o rural, tabaquismo, consumo de alcohol, consumo de sustancias psicoactivas, AINE, corticosteroides y antidepresivos.