Adherence to oral antidiabetic medications in the pediatric population with type 2 diabetes

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Adherence to oral antidiabetic medications in the pediatric population with type 2 diabetes

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Title: Adherence to oral antidiabetic medications in the pediatric population with type 2 diabetes
Author: Adeyemi, Ayoade Olayemi
Abstract: The present study involved the analyses of the Texas Medicaid prescription claims data. The population studied was made up of subjects between 10 and 18 years who had at least 2 prescriptions of the same oral antidiabetic (OAD) medication from January 1, 2006 through December 31, 2009. Twelve months’ data for each subject were analyzed. The main aim of the study was to describe OAD medication use patterns in the study population, assess trends in Medication Possession Ratio (MPR) and persistence in the study population and determine the relationship between age and MPR and between age and persistence while controlling for covariates. Results of the descriptive statistics, multiple and logistic regression analyses are reported. The average age (± SD) of the 3,109 eligible subjects was 14 (± 2) years; minority populations made up the majority (87%) of the population; 67% of the population were females; and 91% were on the OAD metformin. The overall mean MPR (± SD) for the population was 45% (± 27). A significant negative relationship between MPR and age was reported while controlling for covariates (p<0.0001). Among the covariates, white race and male were significantly associated with a higher MPR, holding other variables constant. When adherence was dichotomized (MPR < 80% and MPR >= 80%), logistic regression analysis also found that age was significantly and negatively related to MPR (p < 0.0001). In addition, the white race and male were again significantly related to a higher level of adherence, holding other variables constant. The overall mean days to non-persistence (± SD) was 108 days (± 86). Persistence was significantly and negatively associated with age, holding other variables constant (p < 0.0001). Among the covariates, white race was significantly related to longer persistence. In conclusion, adherence and persistence are generally low in the study population. Age, gender and race were significantly associated with adherence. Being younger, male, and white were significantly associated with a higher level of adherence, while being younger and white were significantly associated with longer persistence. Healthcare providers therefore need to intensify efforts to improve adherence in pediatric patients especially those at the brink of adulthood.
Department: Pharmacy
Subject: Type 2 diabetes Pediatric patients Oral antidiabetic medications Diabetes in children Treatment
URI: http://hdl.handle.net/2152/ETD-UT-2011-05-2759
Date: 2011-05

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