Qualitative researchers have much to gain by using comparison groups. Although their use within qualitative health research is increasing, the guidelines surrounding them are lacking. The purpose of this article is to explore the extent to which qualitative comparison groups are being used within health research and to outline the lessons learned in using this type of methodology. Through conducting a scoping review, 31 articles were identified that demonstrated five different types of qualitative comparison groups. I highlight the key benefits and challenges in using this approach.
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