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来源类型 | Working Paper |
规范类型 | 报告 |
DOI | 10.3386/w15691 |
来源ID | Working Paper 15691 |
Does Prescription Drug Adherence Reduce Hospitalizations and Costs? | |
William Encinosa; Didem Bernard; Avi Dor | |
发表日期 | 2010-01-28 |
出版年 | 2010 |
语种 | 英语 |
摘要 | We estimate the impact of diabetic drug adherence on hospitalizations, ER visits, and hospital costs, using insurance claims from MarketScan® employer data. However, it is often difficult to measure the impact of drug adherence on hospitalizations since both adherence and hospitalizations may be correlated with unobservable patient severity. We control for such unobservables using propensity score methods and instrumental variables for adherence such as drug coinsurance levels and direct-to- consumer-advertising. We find a significant bias due to unobservable severity in that patients with more severe health are more apt to comply with medications. Thus, the relationship between adherence and hospitalization will be underestimated if one does not control for unobservable severity. Overall, we find that increasing diabetic drug adherence from 50% to 100% reduced the hospitalization rate by 23.3% (p=0.02) from 15% to 11.5%. ER visits are reduces by 46.2% (p=.04) from 17.3% to 9.3%. While such an increase in adherence increases diabetic drug spending by $776 a year per diabetic, the annual cost savings for averted hospitalizations are $886 per diabetic, a cost offset of $110 (p=0.02), or $1.14 per $1 spent on drugs. |
主题 | Public Economics ; National Fiscal Issues ; Health, Education, and Welfare ; Health |
URL | https://www.nber.org/papers/w15691 |
来源智库 | National Bureau of Economic Research (United States) |
引用统计 | |
资源类型 | 智库出版物 |
条目标识符 | http://119.78.100.153/handle/2XGU8XDN/573364 |
推荐引用方式 GB/T 7714 | William Encinosa,Didem Bernard,Avi Dor. Does Prescription Drug Adherence Reduce Hospitalizations and Costs?. 2010. |
条目包含的文件 | ||||||
文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
w15691.pdf(216KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 |
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