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Polypharmacy among older adults in Tehran

Author(s): B. Ahmadi | M. Alimohamadian | M. Mahmoodi

Journal: Tehran University Medical Journal
ISSN 1683-1764

Volume: 64;
Issue: 9;
Start page: 55;
Date: 2006;
Original page

Keywords: polypharmacy | drugs consumption

Background: Multiple drug use is frequently considered to be hazardous for the elderly because of their greater vulnerability to the complications. The purpose of this study was to determine the prevalence of polypharmacy in Tehran and to assess the relative demographic characteristics of patients. Methods: In a cross-sectional study 400 persons aging 55 years and older were interviewed in order to determine the presence of polypharmacy (daily intake of three or more drugs). The cases were randomly selected and asked to answer a questionnaire through interview at home. The questionnaire contained questions about all taking drugs, pattern of using each drug and also patients' personal, social and medical history. Chi-square and fisher exact tests and determination of odds ratios were used in order to data analysis. Results: Medium number of drugs used was 3.4 ± 1.9 in studied cases and %39.6 of cases were exposed to polypharmacy. The prevalence of physician prescribed drug usage was observed to be increased by increasing number of total used drugs in each case (P
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