Fear of cancer recurrence experienced by pediatric survivors of childhood cancer: a scoping review.

PURPOSE: In contrast to the extensive literature on fear of cancer recurrence (FCR) experienced by adults, literature evaluating pediatric FCR has just begun to emerge. Given the rapidly expanding body of work assessing FCR in childhood and adolescence, a scoping review was conducted to synthesize existing findings. We aimed to assess (1) the characteristics and methods of this literature, (2) how pediatric FCR has been measured, and (3) the extant knowledge of FCR experienced by pediatric survivors of cancer. METHODS: Inclusion criteria were: (1) original reports, (2) participants diagnosed with cancer before age 18, (3) current mean age under 18, (4) FCR was explicitly measured (quantitatively) or captured (qualitatively) via survivor self-report, and (6) published in English. Exclusion criteria were: (1) case studies, and (2) grey literature. Three databases (Embase, MEDLINE, PsycINFO) and reference lists from included studies were searched. All studies were screened for inclusion by two authors and all data were extracted by a single author. RESULTS: Of 3906 identified studies, 19 were included. Studies (published 1991 - 2023) encompassed diverse geographical locations, study designs, and measurement methods. Few assessed FCR as a primary aim (n = 6, 32%). FCR was experienced by 43 - 90% of pediatric survivors. FCR was often positively associated with somatic symptoms and negatively associated with quality of life and emotional functioning. CONCLUSION: FCR is a prevalent issue for children and adolescents. Additional evidence is needed to explore and confirm preliminary findings. Future pediatric FCR studies should aim to align with published priority research areas.

Out of the lab and into the wild: The influence of portion size on food intake in laboratory vs. real-world settings.

External influences on eating behaviour, such as portion size, have been reliably shown to influence food intake in the laboratory. However, little research has examined whether laboratory settings under or overestimate the effect that external influences have on food intake compared to when studied in the real-world. In Study 1, 60 participants (mean age = 32 years) were randomized to consume a large (200 g) or small (100 g) portion of popcorn under controlled laboratory conditions and during a separate session in their home. Results showed that the effect of portion size on food intake was larger at home (d = 0.97) than in the laboratory (d = 0.56). Furthermore, participants reported feeling more relaxed eating at home compared to the laboratory. In Study 2, we examined whether comparable results were observed in a semi-naturalistic laboratory designed to resemble a home setting. 59 participants (mean age = 28 years) completed the same procedure as Study 1 in a standard and a semi-naturalistic laboratory setting. Although participants reported having higher levels of private self-awareness in the standard laboratory, the effect that portion size had on food intake did not differ between the standard laboratory (d = 0.50) and the semi-naturalistic laboratory (d = 0.49). The impact that external influences on eating, such as portion size, have on food intake in the real-world may be underestimated when studied under laboratory conditions.