3.1. Resultados Personas con enfermedades o problemas de salud de larga duración por nivel de educación y periodo. Units: porcentaje de personas de 18 y más años ,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004, Total,39.4,38.7,37.9,29.7,33.5,29.1,31.4,33.3,30.1,32.0,26.5,23.3,29.9,30.6,30.2,25.4,23.9,24.3,26.2, Nivel (0-2): preescolar, primaria y secundaria de 1ª etapa,50.6,50.0,49.8,41.7,46.1,38.7,41.8,44.5,40.0,41.7,36.1,31.3,39.0,39.6,39.9,33.9,32.0,32.7,34.6, Nivel (3-4): secundaria de 2ª etapa y postsecundaria no superior,33.4,32.8,31.7,21.1,24.0,21.1,22.7,22.6,20.9,22.1,17.6,14.9,20.2,20.8,18.9,14.6,14.4,14.0,14.9, Nivel (5-8): primer y segundo ciclo de educación superior y doctorado,30.7,29.2,27.0,18.3,21.3,19.8,20.2,21.7,18.9,21.5,14.7,13.7,18.7,19.3,18.9,15.2,13.0,12.8,15.0, Notes: Source: Encuesta de Condiciones de Vida. INE