Cancer-Related Worry as a Predictor of 5-yr Physical Activity Level in Childhood Cancer Survivors

PURPOSE

Cancer-related worry (CRW; concerns related to cancer and its late effects) is prevalent among childhood cancer survivors. Elevated CRW has been associated with self-reported suboptimal physical activity. The aim of this investigation was to describe associations between CRW and objectively assessed physical activity in childhood cancer survivors.

METHODS

CRW was assessed at a baseline evaluation using six survey items. Weekly minutes of moderate and vigorous physical activity were captured by actigraphy 5.25 (3.8-8.0) yr later. Factor analysis was used to identify types of worry; multiple regression determined independent associations between CRW and moderate and vigorous physical activity adjusting for sex, race, diagnosis, age at baseline, anxiety level at baseline, self-reported physical activity at baseline, and pain interference at baseline.

RESULTS

Participants ( n = 1223) were an average of 30.9 (SD, 6.9) yr at baseline and 36.1 (SD, 7.1) yr at follow-up. Thirty-seven percent were survivors of leukemia, 26% of non-CNS solid tumors, 19% of lymphoma, 11% of CNS tumors, and 6% of other malignancies. Two types of CRW were identified: "body-focused" and "general fear." Body-focused CRW ( β = -19.6, P = 0.012), endorsing pain interference ( β = -27.7, P = 0.002) at baseline, and having a diagnosis of CNS tumor ( β = -41.3, P = 0.0003) or non-CNS solid tumor ( β = -19.4, P = 0.02) were negatively associated with physical activity at follow-up.

CONCLUSIONS

CRW related to bodily function and appearance is associated with decreased physical activity. Clinicians should consider the potential negative impact of CRW on physical activity levels and provide behavioral counseling.

Associations Among Perceived Parent and Peer Support, Self-Esteem, and Cancer-Related Worry in Adolescent and Young Adult Cancer Survivors

Purpose: Cancer-related worry is common among adolescent and young adult (AYA) cancer survivors, and is associated with adverse psychosocial outcomes. Thus, it is crucial to identify possible modifiable covariates of cancer-related worry to aid in developing targeted interventions. This study aimed to explore the cross-sectional associations between cancer-related worry and potential covariates (i.e., perceived parental support, perceived peer support, self-esteem). Methods: One hundred fifty-two survivors between the ages of 15 and 25 who had been diagnosed with cancer between the ages of 14 and 21 completed the Inventory of Parent and Peer Attachment, the Rosenberg Self-Esteem Scale, the Self-Perception Profile for Adolescents, and a measure of cancer-related worry. Relationships among variables were assessed through structural equation modeling. Results: The model showed good fit [χ²(13) = 13.26, p = 0.43; comparative fit index = 0.997; root mean square error of approximation = 0.01 (90% confidence interval = 0.00-0.08); standardized root mean square residual = 0.04]; however, not all associations were in expected directions. Higher perceived parent and peer support were each significantly associated with lower self-esteem, which, in turn, was significantly associated with higher cancer-related worry. There was no direct association between support variables and cancer-related worry. Conclusion: These findings, which contradict existing theory about self-esteem development in healthy AYAs and prior research about the association between support and self-esteem in children and adolescents with cancer, suggest complex, and likely reciprocal, relationships among perceived support, cancer-related worry, and self-esteem in AYA cancer survivors. Support interventions involving peers with cancer and cognitive behavioral interventions targeting parent and peer relationships, self-esteem, and cancer-related worry may be beneficial in fostering AYA cancer survivors' psychosocial development.