DESIGN: Three databases (PubMed, PsycInfo and Scopus) were searched for studies reporting the effects of positive versus negative framing on cancer treatment decision-making from 1981 to December 2020.

MAIN OUTCOME MEASURE: The effects of positive versus negative framing on cancer treatment preferences and the elimination of framing effect were evaluated.

RESULTS: A total of 12 studies that met inclusion criteria were reviewed. Framing effect was consistently observed in individuals without a cancer diagnosis. There was not enough evidence to suggest a robust framing effect in cancer patients. Surgery was preferred in positive framing, whereas adjuvant therapy was preferred in negative framing. Justification intervention significantly eliminated framing effect. Mixed framing failed to eliminate framing effect.

METHODS: 398 participants completed self-reports assessing BE symptoms, LOC eating, state anxiety, trait anxiety, EDs psychopathology, and BD. They also reported heights and weights. Descriptive statistics, t-tests, chi-square tests, and Z-test for independent proportions were conducted.

RESULTS: There was no significant difference in either the prevalence of BE or EDs psychopathology between participants from the two types of schools. 71 (17.8 %) participants reported moderate-to-severe symptoms of BE, and 46 (11.6 %) reported moderate-to-severe levels of LOC eating. Those who reported moderate-to-severe symptoms of BE reported significantly higher levels of LOC eating, BD, drive to be thinner, BMI, state anxiety, and EDs psychopathology, compared to those who reported none-to-minimal BE.