Chen Qihui, Pei Chunchen, Huang Juerong, Tian Guoqiang
Beijing Food Safety Policy & Strategy Research Base, China Agricultural University, PR China.
Research Center for Future Education, School of Economics and Resource Management, Beijing Normal University, PR China.
Heliyon. 2022 May 9;8(5):e09382. doi: 10.1016/j.heliyon.2022.e09382. eCollection 2022 May.
This study examines the consumption-stimulation function of public health insurance (PHI) programs from the perspective of food consumption. We estimate the impact of enrollment in rural China's PHI program, the New Cooperative Medical Scheme (NCMS), on the insured's diet diversity and diet balance using panel data from the China Health and Nutrition Survey. Exploiting temporal and spatial variations in the program's local implementation, our difference-in-differences estimation (combined with propensity score matching in some analyses) reveals significant increases in the insured's diet diversity, overall diet balance, and nutrition intakes. However, the program's consumption-stimulation function is not entirely beneficial. While NCMS enrollment reduced the incidence of under-consumption of animal products and fruits, it raised that of over-consumption of grains, imposing potential health risks on the insured.
本研究从食品消费的角度考察了公共医疗保险（PHI）计划的消费刺激功能。我们利用中国健康与营养调查的面板数据，估计了中国农村公共医疗保险计划——新型农村合作医疗制度（NCMS）的参保情况对参保者饮食多样性和饮食均衡的影响。通过利用该计划在当地实施中的时间和空间差异，我们的双重差分估计（在某些分析中结合倾向得分匹配）表明，参保者的饮食多样性、总体饮食均衡和营养摄入量有显著增加。然而，该计划的消费刺激功能并非完全有益。虽然参加新农合降低了动物性产品和水果消费不足的发生率，但却提高了谷物消费过量的发生率，给参保者带来了潜在的健康风险。
