News & Events
| Milano - Via Bocconi 8, Room 06
| 30/01/2020 h.12.45
CERGAS Seminar "Older Patients and Geographic Barriers to Pharmacy Access: When Non-adherence Translates to an Increased Use of Other Components of Health Care"
This study develops and applies a Grossman-style health production model to explain whether geographic barriers can influence non-adherence to prescription drugs, as well as the use of other components of health care, as a potential substitute for drug compliance, and their effect on patients’ health. To test the theoretical hypothesis, we used a multivariate probit model estimated by maximum simulated likelihood that considers individual unobserved heterogeneity, which may characterize the relationship between adherence, medical care utilization and health outcome. We used administrative data from Liguria, Italy, the region with the highest rate of individuals over the age of 65 in Europe. Our sample included older individuals affected by cardiovascular diseases, which remain one of the leading causes of death in most OECD countries. Our results showed that not only longer distance to reach drug providers but also “pharmacy desert” negatively influence patients’ adherence. According to our results, patients’ non-adherence to pharmacological therapy is responsible for an increased probability of patients’ post-discharge mortality and the overuse of other medical services, namely hospitalizations and emergency department visits. Non-adherence may thus represent a potential source of waste for the health care system.