Kominski G F, Long S H
UCLA, Los Angeles, CA 90095, USA.
J Health Econ. 1997 Apr;16(2):177-90. doi: 10.1016/s0167-6296(96)00519-x.
We investigated whether or not hospitals have higher costs for inpatient care provided low-income Medicare patients, after controlling for other cost differences already accounted for by Medicare payments. We estimated differences in Prospective Payment System-adjusted costs and outlier-adjusted length of stay for low-income patients relative to matching non-low-income cases from the same hospital in 85 high-volume diagnosis-related groups (N = 1,247,670). Low-income Medicare patients do not have costlier hospital stays, although their stays are 2.5% longer. We conclude that disproportionate share payments are not justified on grounds of higher treatment costs.
在控制了医疗保险支付已涵盖的其他成本差异之后，我们调查了医院为低收入医疗保险患者提供住院护理是否成本更高。我们估计了85个高容量诊断相关组中低收入患者与同一医院匹配的非低收入病例相比，预期支付系统调整后的成本差异以及异常值调整后的住院时间差异（N = 1,247,670）。低收入医疗保险患者的住院费用并不更高，尽管他们的住院时间长2.5%。我们得出结论，基于更高的治疗成本，不成比例份额支付是不合理的。
