Replication Data for: Medicaid Expansion and Prescription Trends: Opioids, Addiction Therapies, and Other Drugs.

RESEARCH DESIGN:
We analyzed the 2010-2016 Medicaid State Drug Utilization Data using a difference-in-differences regression approach, comparing prescriptions per enrollee between states that expanded Medicaid in 2014 and states that did not. We compared opioid pain relievers and opioid addiction therapies to 5 other commonly prescribed drug types important to the Medicaid expansion population (antidepressants, antihypertensives, diabetes medications, cholesterol treatments, and contraceptives) and to overall prescription volume. A secondary analysis compared opioid pain relievers and opioid addiction therapies, between states with high and low overdose death rates.

研究设计：
本研究采用双重差分 (difference-in-differences) 回归分析方法，对2010-2016年美国医疗补助计划 (Medicaid) 州级药品使用数据开展分析，对比2014年扩大医疗补助覆盖范围的州与未实施扩围的州的参保人人均处方数。本研究将阿片类止痛药 (opioid pain relievers) 与阿片类成瘾治疗药物 (opioid addiction therapies)，与另外5类对医疗补助扩围人群具有重要意义的常用处方药（抗抑郁药 (antidepressants)、抗高血压药 (antihypertensives)、糖尿病用药 (diabetes medications)、调脂治疗药物 (cholesterol treatments) 及避孕药 (contraceptives)）以及总处方量进行对照分析。二级分析则对比了药物过量致死率 (overdose death rates) 高低不同的州之间的阿片类止痛药与阿片类成瘾治疗药物的使用差异。