本文采用2005-2012年加拿大公共医疗领域内接受关节置换手术病人的等待时间数据,从医疗信息披露的角度探讨等待时间担保政策在公共医疗等待时间缩减问题上的政策效果。研究发现:等待时间担保政策下,医疗信息披露无法起到直接缩短公共医疗等待时间的作用,但是作为调节变量在等待时间循证基准实施缩短公共医疗等待时间的过程中发挥正向调节作用。具体而言,等待时间循证基准实施条件下,等待信息披露指数每上升1个百分点,关节置换病人的预期等待时间均值会缩短0.442天,90%的关节置换病人的预期等待时间会缩短0.885天,预期等待时间在182天以内的关节置换病人比重会上升0.158个百分点。 In this paper, we use the waiting time data of patients undergoing joint replacement surgery in Canadian public medical field from 2005 to 2012 to discuss the policy effect of the waiting time guarantee policy on the reduction of public medical waiting time from the perspective of medical information disclosure. The study found that under the waiting time guarantee policy, medical information disclosure can not play a direct role in shortening the waiting time for public medical services, but as a regulatory variable, it plays a positive regulatory role in waiting for evidence-based benchmarking to shorten public medical treatment waiting time. Specifically, waiting for an increase of 1 percentage point per index of information disclosure under the implementation of the benchmarking for waiting time base will shorten the expected waiting time for joint replacement patients by 0.442 days and the expected waiting time for 90% of joint replacement patients will be shortened by 0.885 days , The proportion of patients who expect to have their waiting time within 182 days will increase by 0.158 percentage points.