Cancer rehabilitation services for older women with breast cancer: Impact on health-related quality of life outcomes

Background: Older breast cancer survivors (BCS, age >= 65) are vulnerable to experiencing persistent symptoms and associated declines in health-related quality of life (HRQOL). In research trials, cancer rehabilitation interventions (physical or occupational therapy, PT/OT) have been shown to enhance HRQOL, but the impact of community-based PT/OT services for older BCS is unknown. We performed a retrospective, observational study to better understand the impact of PT/OT services on the HRQOL of older BCS. Methods: Outcomes and covariates were extracted from the outpatient rehabilitation medical record. HRQOL outcomes included: PROMIS (R) global physical health (GPH), global mental health (GMH), physical function (PF), and ability to participate in social roles and activities (SRA). Linear mixed-effect models were used to examine change in HRQOL outcomes and explore the influence of patient age and service type (PT/OT). ICD-10 codes were examined and compared between service types to describe the impairments treated. Results: PT/OT cases (N = 694) were 71.79 +/- 5.44 years old and participated in a median of 11 visits (IQR: 7.0-17.25) over 9.71 weeks (IQR: 6.29-15.29). Most (84.4%) attended PT (n = 579; 84%) versus OT (n = 115; 16%). Overall, significant improvement was observed in each HRQOL outcome (GPH: +3.00, p < 0.001; GMH: +1.80, p < 0.001; PF: +1.97, p < 0.001; SRA: +2.34, p < 0.001). Service type influenced only GPH (p = 0.041); mean improvement was +3.24 (SE: 0.290, p < 0.001) for PT cases and + 1.78 for OT cases (SE: 0.651, p = 0.007). PT cases commonly received treatment for weakness/atrophy, pain, walking, and posture; OT cases commonly received treatment for lymphedema and scarring/fibrosis. No age effects were observed. Conclusions: In this large study of older BCS who participated in community-based PT/OT services across the United States, we observed significant improvements in HRQOL outcomes that are important to older BCS and their providers. Although more research is needed, these findings suggest that improved access to PT/OT could help address unmet HRQOL needs among this population.