Online Platform to Assess Complex Social Relationships and Patient-Reported Outcomes Among Adolescent and Young Adult Cancer Survivors.

Purpose: Social integration and relationship issues have been understudied among adolescent and young adult (AYA) cancer survivors. This study compared social relationships (social networks, support, and isolation) between AYA cancer survivors and noncancer controls, and identified social integration mechanisms through which the cancer experience influences patient-reported outcomes (PROs).

Materials And Methods: One hundred two AYA cancer survivors and 102 age, sex, and race-matched noncancer controls from a national Internet panel completed an online survey to identify up to 25 of closest friends and relatives whom they have contacted within the past 2 years. Participants' interpersonal connections were used to create a social network index. The Duke-UNC Functional Social Support Questionnaire, UCLA Loneliness Scale, and PROMIS-29 Profile were used to measure social support, perceived isolation or loneliness, and PROs (physical functioning, pain interference, fatigue, anxiety, and depression domains), respectively. Path analysis tested effects of cancer experience on PROs using serial social relationship variables as mediators.

Results: Compared with controls, survivors of lymphoma, leukemia, and solid tumor had better social networks; however, survivors of solid tumor and central nervous system malignancies had higher perceived loneliness (all values < .05). Cancer experience was directly associated with poor PROs ( values < .05 for all domains except fatigue) and indirectly associated through the social network-support-loneliness pathway (all values < .05). Survivors with higher loneliness had lower physical functioning and higher pain interference, fatigue, anxiety, and depression versus controls with lower loneliness (all values < .05).

Conclusion: Compared with controls, survivors were more socially connected but experienced greater loneliness, which was associated with poorer PROs. Screening social integration issues during follow-up care and providing appropriate interventions are warranted.