Shwartz M, Martin S G, Cooper D D, Ljung G M, Whalen B J, Blackburn J
Am J Public Health. 1981 Apr;71(4):370-5. doi: 10.2105/ajph.71.4.370.
In this paper, we use an interrupted time series analysis to assess the effect of a 30 per cent reduction in the Medicaid reimbursement fee for physician services on the rate at which eight elective surgical procedures were performed in the Massachusetts Medicaid population. Tonsillectomy/adenoidectomy is the only procedure in which there was a statistically significant decline in the rate of surgery in most areas of the state following the fee cut. There is some evidence of an increase in the rate of disc surgeries/spinal fusions. The rate of other procedures increased in some areas of the state and decreased in other areas in the period after the fee cut.
在本文中，我们采用中断时间序列分析方法，评估医疗补助计划（Medicaid）对医生服务报销费用降低30%，对马萨诸塞州医疗补助人群中8种择期外科手术执行率的影响。扁桃体切除术/腺样体切除术是该州大部分地区在费用削减后，手术率出现统计学显著下降的唯一手术。有一些证据表明椎间盘手术/脊柱融合术的手术率有所上升。在费用削减后的时期内，其他手术的手术率在该州的一些地区上升，而在其他地区下降。
