CATs (Critically Appraised Topics)

What is a CAT?

A CAT (Critically Appraised Topic) is a summary in standardized form of the best available scientific evidence on a topic that answers a clinical question.

The CAT process consists of the following steps:

1. Identification of a clinical problem, gap in knowledge, etc.

2. Translate the problem into an answerable question (PICO and domain)

3. Efficient search for the best evidence (literature search)

4. Selecting and critically assessing methodological quality and applicability (critical appraisal)

5. Making a decision based on the available evidence and applying it in practice

See also: Callander J, Anstey AV, Ingram JR, Limpens J, Flohr C, Spuls PI. How to write a Critically Appraised Topic: evidence to underpin routine clinical practice. Br J Dermatol. 2017 Oct;177(4):1007-1013. doi: 10.1111/bjd.15873.