Polypharmacy and its Related Factors among Elderlies

Background & Aim: The high prevalence of various diseases in elderly people may cause polypharmacy. Administration of the multiple drugs in elderlies makes them prone to side effects and problems related to drug therapy. The purpose of this study was to determine the status of polypharmacy and its related factors among elderlies in Gonabad, 2011. Material & Methods: In this cross-sectional study, 323 elderlies were selected through random stratified sampling method. Data were collected using a 30-item questionnaire including demographic sheet, drug use pattern and its related factors. Validity and reliability of the first questionnaire was determined using content validity and internal proportion and consistency respectively (α-Cronbach's= 0.72). Data was analyzed by descriptive statistics, chi-square and ANOVA using SPSS-PC (v.19). Results: Over 72.1% of the subjects were taking medications. The mean number of medications was 4.06 ± 0.3 per day. Polypharmacy was found in 56.6% of the subjects. Polypharmacy had a significant relationship with sex (P