Quality of life outcomes in sarcoma patients receiving care at a tertiary center.
Authors: Day Jonathan R. , Miller Benjamin , Mott Sarah L. , Loeffler Bradley T. , Tanas Munir , Curry Melissa , Davick Jonathan , Milhem Mohammed M. , Monga Varun 
Published: June 2021

e23557 Background: Sarcomas are a diverse group of neoplasms that vary greatly in clinical presentation and responsiveness to treatment. Given the differences in the sites of involvement, rarity, and treatment modality, a multidisciplinary approach is required. Previous literature suggests patients with sarcoma suffer from poorer quality of life (QoL) especially physical and functional well-being. This study aims to understand if there is an association between treatment at a tertiary sarcoma center and a difference in QoL. Methods: De-identified data was obtained from the Sarcoma Tissue Repository at University of Iowa. Mixed effects regression models were utilized to evaluate the association between disease and treatment characteristics and QoL. QoL was assessed using the self-report FACT-G questionnaire at 12-, 24-, and 36-months post-diagnosis; overall scores and the 4 well-being subscales (Physical, Emotional, Social, Functional) were calculated. Results: 443 patients were identified. Soft tissue sarcomas were more prevalent (87.6%) than bone (12.4%). 53% of patients received chemotherapy and 38.6% got radiation therapy. Sarcomas were most frequently located in the lower extremities(ext.) (33.1%), followed by abdomen (20.9%), pelvic (13.6%), upper ext. (13.1%), thorax (11.3%), head & neck (7.8%). For ext. sarcoma; lower ext: 144 (71.3%), Upper ext: 58 (28.7%). Patients with extremity sarcoma; 133 had limb sparing and 48 had amputations. FACT-G Scores did not appreciably vary between 12, 24-, and 36-month for any QoL responses. Overall well-being had a mean score reported of 87.7 (sd = 15.7). Social well-being sores averaged 23.5 (5.0). Emotional well-being (EWB) 19.2 (4.1) and functional well-being (FWB) 21.3 (6.1), and physical well-being (PWB) 23.7 (4.6). There was no association between overall, PWB, EWB, or FWB with the histological subtype, radiation treatment, type of limb surgery, or any location in the same patients over time. Chemotherapy treatments were associated with lower well-being in multiple domains; PWB scores being 2.01 points lower, (p < 0.01), EWB scores being 1.27 points lower (p = 0.01) and FWB scores being 1.72 (p = 0.03), and 4.44 points lower overall (p = 0.03), on average, after adjusting for overall changes across time. Patients with ext. sarcoma only overall FACT-G scores differed 6.72 points higher for upper ext. than lower ext (p = 0.04). Conclusions: Overall QoL areas were similar to normative FACT-G scores both overall and specific areas. Having received chemotherapy was associated with lower well-being scores physically, emotionally, functionally, and overall. There were no clinically relevant differences reported in QoL scores between 12-,24-, and 36-months in the same patients. Further work is needed to describe QoL differences among patients with sarcoma at tertiary centers and examine what protective factors may influence patient well-being.