Table 1.

Inclusion and exclusion criteria for the review.

Operational Criteria	Inclusion Criteria	Exclusion Criteria
Population	All age groups were allowed. The diagnoses explored were “bigorexia (nervosa)”, “muscle dysmorphia”, or “reverse anorexia”. Diagnoses made according to the DSM or ICD nosographic systems (no limitations regarding the edition) were permitted, but also original criteria constructed by authors of the respective reports.	Unspecified diagnoses or reports that included various EDs or BDDs without clarifying what criteria were used during the research.
Intervention	Any type of study, such as clinical or preclinical research, epidemiological or clinical, prospective or retrospective, etc. Any type of review, such as systematic, narrative, scoping, meta-analysis, umbrella review, etc.	Studies with undetermined methodology and reviews with unspecified design.
Environment	Inpatient, outpatient, daycare, and general population.	Unspecified environment.
Primary and secondary variables	Prevalence, incidence, risk factors, clinical diagnosis, pathophysiological data, psychological evaluation, and treatment.	Imprecisely defined or poorly characterized variables and reports without pre-defined outcomes.
Study design	Primary and secondary reports, clinical and preclinical research.	Unspecified or insufficiently defined designs.
Language	Any language of publication was admitted if the in extenso version of the paper could be retrieved.

ED = eating disorder, BDD = body dysmorphic disorder, DSM = Diagnostic and Statistical Manual of Mental Disorders, and ICD = International Classification of Diseases.