Introducing LATITUDES: a library of assessment tools and instruments used to assess data validity in evidence syntheses

Article type
Authors
Whiting P1, Wolff R1, Savovic J2, Simera I3, Mallett S3
1Kleijnen Systematic Reviews, United Kingdom
2University of Bristol, United Kingdom
3University of Oxford, United Kingdom
Abstract
Background:
Evidence syntheses provide the most reliable form of evidence for decision makers. A formal assessment of the validity of included studies is an essential component of any systematic review. This requires a formal risk of bias or quality assessment tool. Many tools are available, usually designed specifically for different study designs and/or topic areas.

Objectives:
To introduce the LATITUDES Network (www.latitudes-network.org), a library of assessment tools and instruments used to assess data validity in evidence syntheses.

Methods:
We are establishing LATITUDES to increase the robustness of evidence syntheses by improving the process of validity (risk of bias or quality) assessment. Our goals are to increase the use of key tools, help people use tools more effectively, improve incorporation of the validity assessment into the review and disseminate best practice in validity assessment.

Results:
LATITUDES (www.latitudes-network.org) aims to improve the overall quality of research syntheses by improving the process of validity assessment. We will provide a complementary initiative inspired by the EQUATOR Network (www.equator-network.org), an influential international resource to improve the reporting and transparency of health research studies. The LATITUDES network will index validity assessment tools developed for healthcare studies in an online library. Key risk of bias tools will be highlighted to help reviewers identify the optimum tool for their review. We will provide toolkits to aid the use of validity assessment tools. Toolkits will aim to enable better and effective use of existing tools and to improve the incorporation of the validity assessment into the review. Project outputs and communication will focus around a freely available online platform featuring the library, key tools, toolkits, online training materials, and links to courses and events.

Conclusions: LATITUDES aims to be the primary resource, networking reviewers to key information when planning and conducting validity assessment for their review.