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A dual machine learning-based study of the impact of DIP insurance payment reform on the medical expenses of lung cancer inpatients in hospitals of Chinese medicine

LI Lei, Tan Huawei, XU Lu, GUO Dandan, BI Shengxian, CHEN Yingchun

Health Development and Policy Research, 2025, 28(3): 358-364. DOI: 10.12458/HDPR.202406071

变量	处理组			控制组
变量	改革前	改革后	差值	改革前	改革后	差值
住院总医疗费用/元	10 224.03	10 015.02	209.01	22 616.93	15 177.12	7 439.81^①
乙类自付费用/元	598.73	634.71	−36.02	1 359.74	730.93	628.81
丙类费用/元	586.44	431.48	154.96^②	2 163.33	2 115.74	47.59
乙类自付费用占比/%	5.10	5.87	−0.77^②	5.50	5.71	−0.21
丙类费用占比/%	4.81	3.92	0.89^②	7.43	8.65	−1.22
样本量/人	820	1 013	−183	360	250	130

表2 住院医疗费用变化情况

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