Cheng Lingguo, Liu Hong, Zhang Ye, Shen Ke, Zeng Yi
School of Business, Nanjing University, Nanjing, China.
Health Econ. 2015 Jun;24(6):672-91. doi: 10.1002/hec.3053. Epub 2014 Apr 29.
This paper investigates the effects of China's New Cooperative Medical Scheme (NCMS) on health outcomes and healthcare expenditure of the elderly in rural China, using panel data from the 2005 and 2008 waves of the Chinese Longitudinal Healthy Longevity Survey. We employ a strategy that combines propensity score matching with a difference-in-differences approach to address selection bias. Results show that the NCMS has significantly improved the elderly enrollees' activities of daily living and cognitive function but has not led to better self-assessed general health status. We find no significant effect of NCMS on mortality for the previously uninsured elderly in NCMS counties, although there is moderate evidence that it is associated with reduced mortality for the elderly enrollees. We also find that the elderly participants are more likely to get adequate medical services when sick, which provides a good explanation for the beneficial health effects of NCMS. However, there is no evidence that the NCMS has reduced their out-of-pocket spending. Furthermore, we also find that low-income seniors benefit more from NCMS participation in terms of health outcomes and perceived access to health care, suggesting that the NCMS helps reduce health inequalities among the rural elderly.
本文利用中国老年健康影响因素跟踪调查2005年和2008年两轮的数据,研究了中国新型农村合作医疗制度(新农合)对中国农村老年人健康状况和医疗支出的影响。我们采用了倾向得分匹配与双重差分法相结合的策略来解决选择偏差问题。结果表明,新农合显著改善了参保老年人的日常生活活动能力和认知功能,但并未带来更好的自我评估总体健康状况。我们发现,对于新农合试点县中之前未参保的老年人,新农合对其死亡率没有显著影响,不过有适度证据表明,新农合与参保老年人死亡率降低有关。我们还发现,老年参保者生病时更有可能获得足够的医疗服务,这很好地解释了新农合对健康的有益影响。然而,没有证据表明新农合减少了他们的自付费用。此外,我们还发现,低收入老年人在健康状况和医疗服务可及性方面从参与新农合中受益更多,这表明新农合有助于减少农村老年人之间的健康不平等。