Table 2.

Inclusion and exclusion criteria.

	Inclusion	Exclusion
Participants	•Participants are over the age of 18 years old. •Participants are transgender i.e. have a gender identity which is different from their assigned gender.	•Participants include Lesbian, Gay and Bisexual participants as well as transgender participants •Participants include those under the age of 18
Types of study	•Qualitative or mixed-methods studies. •Study involved primary data collection comprising first person accounts through interviews, focus groups, open-ended surveys etc. •Study focused on (i.e. asked about or found a theme relating to) participant's experiences of distress in relation to their gender identity i.e. the thoughts, feelings, and sensations associated with gender related distress. •Published in a peer-reviewed journal. •Written in English. •Any time period. •Any geographical region.	•Observational or secondary data studies. •Quantitative studies •Reviews or commentaries