Abstract：
To investigate the impact of the Affordable Care Act\'s (ACA) Medicaid expansion on African American-white disparities in health coverage, access to healthcare, receipt of treatment, and health outcomes.
A search of research reports, following the PRISMA-ScR guidelines, identified twenty-six national studies investigating changes in health care disparities between African American and white non-disabled, non-elderly adults before and after ACA Medicaid expansion, comparing states that did and did not expand Medicaid. Analysis examined research design and findings.
Whether Medicaid eligibility expansion reduced African American-white health coverage disparities remains an open question: Absolute disparities in coverage appear to have declined in expansion states, although exceptions have been reported. African American disparities in health access, treatment, or health outcomes showed little evidence of change for the general population.
Future research addressing key weaknesses in existing research may help to uncover sources of continuing disparities and clarify the impact of future Medicaid expansion on African American health care disparities.
A search of research reports, following the PRISMA-ScR guidelines, identified twenty-six national studies investigating changes in health care disparities between African American and white non-disabled, non-elderly adults before and after ACA Medicaid expansion, comparing states that did and did not expand Medicaid. Analysis examined research design and findings.
Whether Medicaid eligibility expansion reduced African American-white health coverage disparities remains an open question: Absolute disparities in coverage appear to have declined in expansion states, although exceptions have been reported. African American disparities in health access, treatment, or health outcomes showed little evidence of change for the general population.
Future research addressing key weaknesses in existing research may help to uncover sources of continuing disparities and clarify the impact of future Medicaid expansion on African American health care disparities.
摘要：
为了调查平价医疗法案（ACA）的医疗补助扩大对非洲裔美国人-白人在健康覆盖方面的差距的影响，获得医疗保健，接受治疗,和健康结果。
搜索研究报告，遵循PRISMA-ScR准则，确定了26项全国性研究，调查了非洲裔美国人和非残疾人白人之间医疗保健差异的变化，在ACA医疗补助扩大之前和之后，非老年人比较有和没有扩大医疗补助的州。分析检查了研究设计和发现。
医疗补助资格扩大是否减少了非洲裔美国人与白人健康保险的差距仍然是一个悬而未决的问题：在扩大州，保险的绝对差距似乎有所下降，尽管有例外的报道。非洲裔美国人在健康获取方面的差距，治疗,或健康结果几乎没有证据表明一般人群的变化。
解决现有研究中的主要弱点的未来研究可能有助于发现持续差异的来源，并阐明未来医疗补助扩大对非裔美国人医疗保健差异的影响。
搜索研究报告，遵循PRISMA-ScR准则，确定了26项全国性研究，调查了非洲裔美国人和非残疾人白人之间医疗保健差异的变化，在ACA医疗补助扩大之前和之后，非老年人比较有和没有扩大医疗补助的州。分析检查了研究设计和发现。
医疗补助资格扩大是否减少了非洲裔美国人与白人健康保险的差距仍然是一个悬而未决的问题：在扩大州，保险的绝对差距似乎有所下降，尽管有例外的报道。非洲裔美国人在健康获取方面的差距，治疗,或健康结果几乎没有证据表明一般人群的变化。
解决现有研究中的主要弱点的未来研究可能有助于发现持续差异的来源，并阐明未来医疗补助扩大对非裔美国人医疗保健差异的影响。
