Abstract A106: Examining the role of social connection on allostatic load and quality of life in African American prostate cancer survivors
Authors: Awoyinka Iwalola A. , Flynn Kathryn , Kilari Deepak , Bylow Kathryn , Knight Jennifer , Kwarteng Jamila , Banerjee Anjishnu , Beyer Kirsten M. , Young Staci , Sheean Patricia , Papanek Paula , Stolley Melinda 
Published: December 2023

Abstract
Background. Racial disparities in prostate cancer (PC) survivorship persist despite clinical advancements. Chronic stress may contribute to these disparities, with allostatic load (AL) considered a measure of such stress. Associations between AL and survivorship outcomes such as quality of life (QoL) are documented, yet less is known about factors influencing these relationships. Social connections (SC) (e.g., social networks, social support) are associated with improved QoL in survivors, yet which aspects of SC and which pathways linking SC to QoL remain unclear. Additionally, little is known about the SC of African American PC survivors (AAPCS) and how these relate to QOL, stress, and AL. This study explores the relationship between SC, stress (perceived and AL) and QOL in in 48 AAPCS enrolled in Men Moving Forward, a randomized trial to improve body composition through lifestyle change. Methods. At baseline, participants completed surveys including: the Cohen Social Network Index assessing 3 aspects of social networks: network size (# of ties with regular contact), diversity (# of roles with regular contact) and embeddedness (# of domains with 4 or more regular contacts); Patient-Reported Outcomes Measurement Information System (PROMIS) measures of social support (companionship, emotional and informational support); the perceived stress scale, and PROMIS measures of physical function, anxiety, depression, fatigue, sleep disturbance, social function, and pain intensity. The latter were used to generate summative physical (PQOL) and mental (MQOL) health standardized T-scores (U.S. population mean=50, SD=10). AL scores used 15 criterion reflecting neuroendocrine, cardiovascular, immune, and metabolic systems. Each criterion was assigned a score of 0 or 1: 1 if in the high-risk range based on clinical guidelines. An index score was generated by summing high-risk indicators. Pearson correlations were used to explore the relationship between aspects of SC and QOL and SC and stress variables. Results. The average AL score was 5.8 (SD ± 2.3) of a maximum 15. No significant correlations were found between any SC domains and AL. However, negative associations were identified between network size (r=-.313, p=0.030), emotional support (r=-.319, p = 0.027), companionship (r=-.313, p=0.030) and perceived stress. A positive association was found between loneliness and perceived stress (r=.521, p&lt;0.000). MQOL was positively related to network size (r=.364, p=0.011), emotional support (r=.366, p=0.011), and companionship (r=.288, p=0.047). Loneliness was negatively associated with MQOL (r=-.626, p&lt;0.000) and PQOL (r=-.407, p=0.006). Conclusions. These findings suggest SC has a positive impact on survivorship in AAPCS, and that structural and functional aspects of SC may be involved. Currently, limited resources are available for PC survivors, and even fewer are tailored for AAPCS. Future efforts to improve survivorship for AAPCS should consider assessing social networks and access to social support when initiating survivorship care.
Citation Format: Iwalola A. Awoyinka, Kathryn Flynn, Deepak Kilari, Kathryn Bylow, Jennifer Knight, Jamila Kwarteng, Anjishnu Banerjee, Kirsten M. Beyer, Staci Young, Patricia Sheean, Paula Papanek, Melinda Stolley. Examining the role of social connection on allostatic load and quality of life in African American prostate cancer survivors [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr A106.