title: Validation of the Turkish version of medication regimen complexity index among elderly patients.
abstract: OBJECTIVE
  The aim of this study was to validate the Turkish version of the 'Medication Regimen Complexity Index' (MRCI).
  
  
  METHODS
  This validation study has been conducted in prescriptions of the first 100 elderly patients who had visited the pharmacy for their prescription refill to evaluate convergent and divergent validity of the Turkish version. The reliability of the Turkish version was assessed with inter-rater and test-retest analysis after its translation and cultural adaptation.
  
  
  RESULTS
  The mean age of the 100 patients (53 women) was 74.9 years (SD = 7.58, 65-95). The scale showed high inter-rater reliability and test-retest reliability for the total and subscale scores (p < 0.05). A strong and positive correlation between the number of medications in a prescription and the total Medication Regimen Complexity Index scores (r = 0.930, p < 0.001) was determined. There were no statistically significant differences between age, gender and MRCI scores (p > 0.05).
  
  
  CONCLUSIONS
  These results show that the Turkish version of MRCI is a reliable and valid tool in elderly patients.
authors.affiliation: Clinical Pharmacy Department, Marmara University, Faculty of Pharmacy, Istanbul, Turkey. betulokuyan@yahoo.com.
authors.forename: Betul
authors.initials: B
authors.lastname: Okuyan
authors.affiliation: Clinical Pharmacy Department, Marmara University, Faculty of Pharmacy, Istanbul, Turkey.
authors.forename: Bedis
authors.initials: B
authors.lastname: Babi
authors.affiliation: Clinical Pharmacy Department, Marmara University, Faculty of Pharmacy, Istanbul, Turkey.
authors.forename: Mesut
authors.initials: M
authors.lastname: Sancar
authors.affiliation: Department of Public Health, Marmara University Faculty of Medicine, Istanbul, Turkey.
authors.forename: Pınar
authors.initials: P
authors.lastname: Ay
authors.affiliation: Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, Houston, TX, USA.
authors.forename: Emre
authors.initials: E
authors.lastname: Yücel
authors.affiliation: Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, USA.
authors.forename: Aylin
authors.initials: A
authors.lastname: Yücel
authors.affiliation: Clinical Pharmacy Department, Marmara University, Faculty of Pharmacy, Istanbul, Turkey.
authors.forename: Fikret Vehbi
authors.initials: FV
authors.lastname: Izzettin
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D019338:Polypharmacy; D011247:Pregnancy; D011795:Surveys and Questionnaires / Q000592:standards*; D014421:Turkey
keywords: clinical pharmacy; elderly; medication complexity; polypharmacy