Abstract
PURPOSE: There is a growing population of adolescent and young adult (AYA, ages 15-39 at diagnosis) cancer survivors at heightened risk of chronic conditions. Moderate to vigorous physical activity level (MVPA) is an important modifiable factor associated with improved cardiovascular health. Little is known about the association of sociodemographic factors with MVPA in AYA survivors. METHODS: Self-reported data from the National Health Interview Survey (2009-2018) were used to identify AYA cancer survivors (at least 2 years post-diagnosis) and age- and sex-matched controls. MVPA level based on sociodemographic (sex, race and ethnicity, income, education), medical (heart disease, stroke, and diabetes), and cardiovascular risk factors (BMI and smoking) was determined within and between survivors and controls using multivariable linear regression models. RESULTS: A total of 4766 AYA cancer survivors and 47,660 controls were included. Less than half of survivors (41.9%) and controls (43.2%) met MVPA guideline recommendations, and one-third of survivors (33.4%) reported no MVPA. Black race was associated with reduced MVPA compared with White race (ratio: 0.58 (95% CI: 0.37-0.90). Household income < $50,000/year, education < high school, diagnoses of diabetes or heart disease, and current smoking were all significantly associated with reduced MVPA in AYA survivors. There were no differences in MVPA between survivors and controls by sociodemographic factors, medical history, and cardiovascular risk factors. CONCLUSIONS AND IMPLICATIONS FOR CANCER SURVIVORS: We found disparities in MVPA in AYA cancer survivors by sociodemographic, medical, and cardiovascular risk factors. Understanding trajectories of MVPA among different sociodemographic populations is needed to identify opportunities for intervention.