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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 ln住院总医疗费用 ln乙类自付费用 ln丙类费用 乙类自付费用占比 丙类费用占比
DIP支付政策事件 −0.118 8 0.021 7 −0.631 8 0.007 3 −0.015 0
(0.040 3) (0.055 8) (0.087 6) (0.001 3) (0.002 9)
控制变量一次项
控制变量二次项
时间固定效应
机构固定效应
样本量/人 2 443 2 443 2 443 2 443 2 443
表3 DIP支付改革对住院医疗费用的实证结果
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