Doctor of Philosophy, The Ohio State University, 2010, Pharmacy
Background: Diabetes (DM), a costly, increasingly prevalent chronic disease represents one of the leading causes of death and disability in the US. Declining macroeconomic conditions, unemployment, or work force non-participation may affect relationships between cost constraints, medication use, and health services utilization. Few studies assess associations between being without work and medication adherence or health services utilization for diabetics residing in the US. The objective of this preliminary, investigational research was to assess associations between joblessness and US adult working age diabetic oral anti-diabetic (OAD) medication adherence and health services utilization after controlling for demographic characteristics and clinical factors.
Methods: A population based retrospective longitudinal fixed effects panel design using pooled MEPS data for the years 2001-2007 were used to estimate associations between joblessness and OAD medication adherence, as well as health services utilization. Adherence was measured using the proportion of days covered (PDC). Individuals with PDC > = 0.80 were classified as adherent. Utilization outcomes assessed associations between joblessness and the likelihood and number of all cause, DM disease specific and diabetic complication related emergency department, in-patient hospitalization, out-patient, and office based visits. Individuals age 24-59 with an ICD-9-CM code for DM, were included in the study. Pregnancy, seasonal job status, and individuals prescribed long term insulin were excluded from the study. Covariates included age, family size, gender, educational attainment, ethnicity, race, marital status, household income as a fraction of the poverty line, employment status, insurance status and geographical region, metropolitan statistical area, the Enhanced Charlson Co-morbidity Index, body mass index, and smoking status. DM related complications were classified as eye, neurological, renal, macrovascular and (open full item for complete abstract)
Committee: Milap Nahata PhD (Committee Co-Chair); Rajesh Balkrishnan PhD (Committee Co-Chair); James McAuley PhD (Committee Member); Eric Seiber PhD (Committee Member)
Subjects: Health Care; Pharmaceuticals