雖然統合分析最早可追溯自 1930 年代， 然而直到 1970 年代才有適當的統計方法發展出來，以促進更具有效度的跨研究結果之分析。〞統合分析〞這個名詞，是由 Glass於 1976 年所發明，它超越了傳統文獻回顧的方式；除評論與整合外，並利用統計方法系統性地針對特定的研究主題，以綜合跨研究之結果。與傳統敘述性文獻回顧比較，統合分析具有其特有的優點。本文提出統合分析的步驟，以對有興趣從事此方法的研究者提供指引，文中並討論統合分析法的優點與限制。最後，並提出統合分析在護理實務與研究上的應用。應用統合分析以增進知識主體、提供護理實務與研究之指引、甚至影響健康政策，這是護理研究者在促進個案或民眾的健康與生活品質上，很重要的一種方法。科學的根基，在於從許多的研究結果中累積知識，統合分析即提供了一適當的另類研究法。

Although early concepts of meta-analysis date back to the 1930s, appropriate statistical methods were not available until the late 1970s to facilitate more valid analyses ofresults across studies. The term "metaanalysis" was coined in 1976 by Glass.Itgoes beyond the traditional literature review by using statistical methods to systematically combine results across studies in a specific research question. Compared to the traditional narrative review of the literature, meta-analysis has some advantages. The foundation of science is the accumulation of knowledge from the results of many studies. Meta-analysis provides a legitimate method for alternative scientific research. This article presents the steps of conducting a meta-analysis and provids guidelines for researchers who are interested in this method. The advantages and limitations of the meta-analysis are discussed. Implications of meta-analysis in nursing practice and research are proposed. Using meta-analysis to enhance the body of knowledge, provide guidelines for nursing practice and research, and influence health policy are important ways that nurse researchers can contribute to improving clients' health outcomes and quality of care.