Disparities in the healthcare are simply the clinical differences in outcomes such as healthcare stem, disease prevalence, mortality that are experienced by comparing one population with other (A report by AHRQ, 2010). Such differences are described by various attributes such as race, language, sex, financial status, ethnicity, social status and health literacy. Despite different understanding about the disparities, it is uncertain to identify the strategy that can enhance to quality of patient care in an effective manner and reduce discriminations among populations (Smedly BD, & Nelson AR., 2003)
As discussed above, Quality improvement is a multidisciplinary, data-driven and systems-focused method of evidence based practice in healthcare that support to improve the effectiveness, and reliability of healthcare processes and its outcomes. QI intervention was defined as a process change in different health care systems, or suppliers enabling optimal clinical quality of care.
An intervention is a strategy targeting at minimizing the quality gap that is the difference between health care systems or its outcomes those are observed in practice and existing evidence-based research (Shojania KG, Wachter RM, et al., 2004). There are four significant elements identified for the ongoing process of quality improvement; 1) performance goals, 2) measures, 3) practices and 4) feedback & reporting (Seid M, Williams VL et al., 2006).
Wide range of initiatives is focused to improve the quality of healthcare nursing and various approaches, models and tools are used in the hospice. Powel A., and Davis H. (2009) identified total quality management (TQM), Business process reengineering, continuous quality improvement, lean thinking, six sigma, etc., are most significant tools for such initiatives.
在医疗保健差异只是在如医疗干，患病率的临床疗效差，死亡率是由一个人口与其他比较有经验的（由AHRQ，2010报告）。这种差异是由不同的属性，如种族，性别，语言，财务状况，种族，社会地位和健康素养。尽管对差异的理解不同，它是不确定的识别，可以提高病人护理质量的一种有效的方式，减少歧视群体间的策略（斯梅德莱BD，尼尔森等，2003）
如上所述，质量改进是一个多学科，数据驱动和系统的证据集中方法的基础医疗实践中，支持有效的提高，以及医疗保健的过程及其结果的可靠性。齐干预是指在不同的卫生保健系统的一个过程的变化，或供应商使最佳的护理临床质量。
干预是一种策略，针对最小质量的差距，不同的卫生保健系统或其结果之间观察到在实践和现有的实证研究（shojania公斤，Wachter RM，等。，2004）。有四个重要的因素是质量改进的持续的过程；1）绩效目标，2）的措施，3）的做法和4）反馈和报告（SEID M，威廉姆斯六世等人。，2006）。
举措广泛的重点是提高医疗护理质量和各种方法，模型和工具的使用在安宁。鲍威尔A，和戴维斯H（2009）确定了全面质量管理（TQM），业务流程再造，持续质量改进，六西格玛，精益思想，等等，都是这些举措的最重要的工具。
