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Table 2 Examples of choosing websites for different reviews

From: Exploring issues in the conduct of website searching and other online sources for systematic reviews: how can we be systematic?

Systematic review Key purpose of website search Types of websites, online resources and depositories
Access to economic assets for women in low- and lower-middle-income countries [7] Discover relevant research missed or not indexed in international or regional databases Over 35 sites consisting of government and research-active non-governmental organisations, academic research centres and funders, relating to economics, microfinance, international development, or regional development banks
Adult cooking skills programmes [31] Discover unpublished evaluations of cooking skills programmes in the UK Generic search engine, library catalogues, and 25 websites of UK public health and community organisations, research centres and government departments
Depression, anxiety, pain and quality of life in people living with chronic hepatitis C [32] Discover research identified by advocacy organisations and health research potentially missed by database searches Websites of hepatitis C advocacy groups in mainly in the UK and some resources to containing healthcare research in general
Realist synthesis of school accountability in low- and middle-income countries [33] Undertake purposive searching for advisory group engagement and scoping exercise stages prior to bibliographic database searching Specialist databases, search engine, 20 websites of international development agencies and organisations
Exercise interventions and patient beliefs for people with chronic hip and knee pain [34] Discover literature on people’s experiences, largely unpublished in journals Range of website resources covering: arthritis groups in UK, Australasia, and North America, ageing care registries, patient experience resource, grey literature resources, generic search engine, social science research