title: [Inappropriate prescribing in polymedicated patients over 64 years-old in primary care].
abstract: OBJECTIVE
  To describe inappropriate prescribing (IP) in the polymedicated population over 64 years-old in primary care using the STOPP/START criteria.
  
  
  METHODS
  The study design was descriptive, cross-sectional and multicenter.
  
  
  METHODS
  Four urban primary care centers in Barcelona. Participants Patients over 64 years-old with more than 5 prescribed drugs for at least 6 months (n=467). Main measurements Major health problems, chronically prescribed drugs, and percentage of IP using the STOPP/START criteria were studied. Percentage of IP considered as the percentage of patients with at least one STOPP or START non-compliance criterion was calculated with a 95%CI. Chi-square was used for statistical analysis.
  
  
  RESULTS
  The mean age was 77.3 (± 7.0 SD) with a mean of 8.9 (± 2.8 SD) prescribed drugs. IP was higher the greater the number of drugs prescribed (p<0,01). 326 patients (76.4% [95%CI: 72.2 to 80.6]) had at least one IP, according to STOPP/START criteria. STOPP IP affected 51.4% of the patients and START IP 53.6%. The most frequent causes of IP were antiplatelet agents, for both over-prescribing (10.2%) and omission (17.9%). Prolonged use of benzodiazepines (6.6%) and duplications (6.4%) followed in prevalence.
  
  
  CONCLUSIONS
  IP in polymedicated patients in primary care was very high. IP was similar for drugs that should be withdrawn or started. The most common causes of IP were antiplatelet agents, benzodiazepines and drug duplication.
authors.affiliation: Centro de atención primaria El Clot, Institut Català de la Salut, Barcelona, España. Electronic address: josefinafilomenapaci@gmail.com.
authors.forename: Josefina
authors.initials: J
authors.lastname: Filomena Paci
authors.affiliation: Centro de atención primaria La Mina, Institut Català de la Salut, Barcelona, España.
authors.forename: Marta
authors.initials: M
authors.lastname: García Alfaro
authors.affiliation: Centro de atención primaria Poblenou, Institut Català de la Salut, Barcelona, España.
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Redondo Alonso
authors.affiliation: Unitat Docent AFiC Barcelona Ciutat, Institut Català de la Salut, Barcelona, España.
authors.forename: María Isabel
authors.initials: MI
authors.lastname: Fernández San-Martín
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D057970:Inappropriate Prescribing / Q000706:statistics & numerical data*; D008297:Male; D019338:Polypharmacy; D011320:Primary Health Care
keywords: Ancianos; Atención primaria; Elderly; Inappropriate prescribing; Polimedicación; Polymedication; Prescripción inadecuada; Primary care
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