价格放开是否会导致中国药品价格上涨？一项中断时间序列分析。
Does price deregulation increase drug price in China? An interrupted time series analysis.
机构信息
School of Public Administration, Southwestern University of Finance and Economics, Chengdu, Sichuan, China.
Center of Health Policy and Governance, Southwestern University of Finance and Economics, Chengdu, Sichuan, China.
出版信息
Int J Health Plann Manage. 2021 Sep;36(5):1653-1665. doi: 10.1002/hpm.3244. Epub 2021 May 24.
BACKGROUND
The Chinese government removed the price ceiling of most drugs in June 2015 to establish a market-driven pricing system. The purpose of this study is to examine the impact of the elimination of drug ceiling price (EDCP) policy on drug prices.
METHODS
Using a national macro-level dataset, we employed an interrupted time series method to study the abrupt level and gradual trend changes of Chinese and Western medicine consumer price index (CPI) between June 2014 and June 2017.
RESULTS
The policy exerted level change on Chinese medicine CPI, increasing 0.201% (95% CI 0.026% to 0.376%, p = 0.026). And the trend in Chinese medicine CPI was still decreased nonsignificantly after the EDCP policy. However, there was no significant price change in Western medicine.
CONCLUSION
The EDCP policy has different effects on the prices of Chinese and Western medicines. Therefore, we need to pay more attention to the drug pricing mechanism in the future.
背景
中国政府于 2015 年 6 月取消了大多数药品的价格上限，以建立一个由市场驱动的定价体系。本研究旨在考察取消药品最高限价（EDCP）政策对药品价格的影响。
方法
利用国家宏观层面数据集，采用中断时间序列法研究了 2014 年 6 月至 2017 年 6 月期间中药和西药消费者价格指数（CPI）的突然水平和渐进趋势变化。
结果
该政策对中药 CPI 产生了水平变化，增加了 0.201%（95%置信区间为 0.026%至 0.376%，p=0.026）。EDCP 政策实施后，中药 CPI 的趋势仍呈非显著下降趋势。然而，西药价格没有显著变化。
结论
EDCP 政策对中药和西药的价格有不同的影响。因此，我们今后需要更加关注药品定价机制。
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