The methodology and reporting characteristics of Campbell reviews: a review




Poster session 2


Monday 17 September 2018 - 12:30 to 14:00

All authors in correct order:

Wang X1, Welch V2, Yao L3, Littell J4, Chen Y5, Wang J5, Liu X5, Li H5, Li M5, Shamseer L6, Yang K5, Grimshaw J7
1 Evidence-Based Medicine Centre of Lanzhou University, China, Centre of Implementation Research, Ottawa Hospital Research Institute, Canada
2 Bruyère Research Institute, Ottawa, Canada
3 Clinical Division, School of Chinese Medicine, Hong Kong Baptist University, China
4 Graduate School of Social Work and Social Research Bryn Mawr College, Bryn Mawr, PA, USA
5 Evidence-Based Medicine Centre of Lanzhou University, China
6 School of Pharmacy, University of Maryland, Baltimore, USA
7 Centre of Implementation Research, Ottawa Hospital Research Institute, Department of Medicine, University of Ottawa, Canada
Presenting author and contact person

Presenting author:

Xiaoqin Wang

Contact person:

Abstract text
The Campbell Collaboration was established in 2000. Since then it has produced 147 systematic reviews in the fields of crime and justice, education, international development, nutrition and social welfare. In 2014, the Campbell Collaboration introduced Minimum Expectations for Campbell Collaboration Intervention Reviews (MECCIR adapted from Cochrane MECIR standards). To date, there has no study of the quality of Campbell reviews and their reporting or the effects of adopting MECCIR.

To describe the methodological and reporting characteristics of Campbell reviews published after 2011 and evaluate the effect of the introduction of MECCIR.

We included Campbell reviews published between January 2011 to January 2018. We developed a data abstraction form based upon criteria from the Page 2016 study of reviews in healthcare, MECCIR and AMSTAR (A MeaSurement Tool to Assess systematic Reviews). Items included:
1) basic information, like publication year, number of authors, co-registration information, co-ordinating group, source of funding etc.;
2) methodological characteristics, including protocol, data sources, study selection, data collection and analysis, etc.;
3) results characteristics, especially those corresponding to methods, such as analysis results;
4) characteristics of discussion, like subheadings, limitations, etc..
The AMSTAR 2 will be applied to assess methodology, and reporting data will be summarized as frequencies and percentages.

We included 98 reviews (52 from October 2014 to January 2018 and 46 between January 2011 and September 2014) across five co-ordinating groups, including Crime and Justice (22), Education (26), International Development (28), Social Welfare (37), and Nutrition (1), and 14 reviews were labelled with more than two groups. The mean number of authors was five (range 2 to 13), and the corresponding authors are from 13 countries, most commonly the USA (37 reviews). Of all reviews, 71 (73%) had a title form, 89 (91%) provided a protocol, and 64 (65%) had plain language summaries. Further data will be presented at the conference.

This is the first time that the methodological and reporting characteristics of Campbell reviews has been investigated, specifically comparison of standards before and after the release of MECCIR. By presenting the current situation of Campbell reviews, our results could contribute to the improvement of future work.

Patient or healthcare consumer involvement:

Relevance to patients and consumers: 

The Campbell Collaboration seeks to help policymakers, practitioners, and the public to make well informed decisions about social and economic policy interventions through the production and use of systematic reviews and other evidence synthesis products. Campbell reviews strive for relevance by promoting the assessment of policies and practices using outcomes that matter to the public.