手法を比較

	ネットワークベースのメタアナリシス	スコーピングレビュー
分野	科学計量学	科学計量学
系統	Process / pipeline	Process / pipeline
提唱年	2002 (Lumley); refined 2008–2012	2005
提唱者	Thomas Lumley (statistical framework); Georgia Salanti (SUCRA and ranking methods)	Hilary Arksey & Lisa O'Malley
種類	Quantitative evidence synthesis	Evidence synthesis review design
原典	Lumley, T. (2002). Network meta-analysis for indirect treatment comparisons. Statistics in Medicine, 21(16), 2313–2324.	Arksey, H., & O'Malley, L. (2005). Scoping studies: towards a methodological framework. International Journal of Social Research Methodology, 8(1), 19–32.
別名	NMA, network meta-analysis, mixed-treatment comparison, multiple-treatments meta-analysis	scoping study, literature scoping, evidence mapping review, rapid evidence map
関連	5	6
概要	Network-based Meta-analysis (NMA) extends conventional pairwise meta-analysis by simultaneously synthesizing evidence across a network of two or more competing treatments, including pairs that have never been compared head-to-head in a single trial. By combining direct and indirect evidence within a coherent statistical model, NMA produces relative effect estimates for all treatment pairs and generates a probabilistic ranking of which treatment performs best on the outcome of interest.	A scoping review is a systematic evidence-synthesis method that maps the breadth and nature of research on a topic — identifying key concepts, evidence types, and gaps — without necessarily appraising study quality or pooling effect sizes. Developed by Arksey and O'Malley (2005) and refined by Levac and colleagues (2010), it is particularly valuable for emerging or heterogeneous fields where a full systematic review would be premature or infeasible.