title: [The practice of Internal Medicine in Andalusia follows the evidence-based medicine basic principles].
abstract: BACKGROUND
  To know the proportion of medical interventions carried out in the Services of Internal Medicine of the public hospitals of Andalusia based on randomized clinical trials.
  
  
  METHODS
  We have analyzed the primary treatments prescribed in a random sample of 326 patients admitted to these Internal Medicine services during 1998.
  
  
  RESULTS
  One hundred and forty-three of the 326 treatments analyzed (43.9%) were based in clinical trials and 135 (41.4%) were interventions unanimously accepted by the medical community without being based in clinical trials.
  
  
  CONCLUSIONS
  Most of the primary Andalusian treatments prescribed in the Internal Medicine services are evidence-based.
authors.affiliation: Area de Medicina, Hospital Alto Guadalquivir, Andújar, Jaén. jzambrana@ephag.es
authors.forename: J L
authors.initials: JL
authors.lastname: Zambrana García
authors.forename: M J
authors.initials: MJ
authors.lastname: Velasco Malagón
authors.forename: F
authors.initials: F
authors.lastname: Díez García
authors.forename: M D
authors.initials: MD
authors.lastname: Martín-Escalante
authors.forename: G
authors.initials: G
authors.lastname: Cruz-Caparrós
mesh_terms: D019317:Evidence-Based Medicine / Q000639:trends*; D007388:Internal Medicine / Q000639:trends*; D013030:Spain