title: [Validity and concordance of electronic health records in primary care (AP-Madrid) for surveillance of diabetes mellitus. PREDIMERC study].
abstract: OBJECTIVE
  To assess the validity and concordance of diabetes data in the electronic health records of primary care (Madrid-PC) by comparing with those from the PREDIMERC study.
  
  
  METHODS
  The sensitivity, specificity, positive predictive value, negative predictive value and kappa index of diabetes cases recorded in the health records of Madrid-PC were calculated by using data from PREDIMERC as the gold standard. The prevalence of diabetes was also determined according to each data source.
  
  
  RESULTS
  The sensitivity of diabetes recorded in Madrid-PC was 74%, the specificity was 98.8%, the positive predictive value was 87.9%, the negative predictive value was 97.3%, and the kappa index was 0.78. The prevalence of diabetes recorded in Madrid-PC was 6.7% versus 8.1% by PREDIMERC, where known diabetes was 6.3%.
  
  
  CONCLUSIONS
  The electronic health records of primary care are a valid source for epidemiological surveillance of diabetes in Madrid.
authors.affiliation: Subdirección de Promoción de la Salud y Prevención, Consejería de Sanidad, Madrid, España. Electronic address: elisa.gil@salud.madrid.org.
authors.forename: Elisa
authors.initials: E
authors.lastname: Gil Montalbán
authors.affiliation: Subdirección de Promoción de la Salud y Prevención, Consejería de Sanidad, Madrid, España.
authors.forename: Honorato
authors.initials: H
authors.lastname: Ortiz Marrón
authors.affiliation: Subdirección de Promoción de la Salud y Prevención, Consejería de Sanidad, Madrid, España.
authors.forename: Dulce
authors.initials: D
authors.lastname: López-Gay Lucio-Villegas
authors.affiliation: Subdirección de Promoción de la Salud y Prevención, Consejería de Sanidad, Madrid, España.
authors.forename: Belén
authors.initials: B
authors.lastname: Zorrilla Torrás
authors.affiliation: Servicio de Endocrinología y Nutrición, Hospital Universitario Ramón y Cajal, Madrid, España.
authors.forename: Francisco
authors.initials: F
authors.lastname: Arrieta Blanco
authors.affiliation: Centro de Salud Las Águilas, Servicio Madrileño de Salud, Madrid, España.
authors.forename: Pedro
authors.initials: P
authors.lastname: Nogales Aguado
mesh_terms: D003430:Cross-Sectional Studies; D003920:Diabetes Mellitus / Q000453:epidemiology; D057286:Electronic Health Records / Q000706:statistics & numerical data*; D062665:Epidemiological Monitoring; D006801:Humans; D015995:Prevalence; D011320:Primary Health Care; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires
keywords: Diabetes mellitus; Electronic health records; Epidemiology; Epidemiología; Historia clínica electrónica; Public health surveillance; Sensibilidad y especificidad; Sensitivity and specificity; Vigilancia epidemiológica