Abstract
70 Background: Metastatic breast cancer (MBC) and its treatments can have a significant impact on patients’ health-related quality of life (HRQoL) and daily functioning. To better assess the impact of MBC on HRQoL, we conducted an online survey among women with MBC. Methods: We developed and administered a cross-sectional, web-based survey, and invited registered members of three advocacy groups currently living with MBC to participate. Respondents completed an informed consent and completed assessments on symptom burden using an overall QOL question (1 item), the MD Anderson Symptom Inventory Survey (MDASI), activities of daily living (ADLs, Rotterdam Scale), and impacts on work productivity. Results: We received 1285 complete responses to the survey. Over half the respondents were between 40-49yrs (37%) or 30-39 yrs (26%). The majority were white (87.7%), well-educated (70.7% had a bachelor’s degree or higher), and working at the time of the survey (55%), with private health insurance (63%). After diagnosis with MBC, most patients had received endocrine therapy (44.2% aromatase inhibitors, 27.3% fulvestrant). The most common chemotherapy agents received after diagnosis with MBC were capecitabine (30.1%) and docetaxel (26.9%). The overall mean HRQoL score was 74 (0-100, higher is better). Mean respondent-reported MDASI scores for symptom severity (SS) and symptom interference (SI) were 4.2 and 4.5 (0-10, higher is worse). Mean Rotterdam scale scores to assess ADLs were 23.7 (0-32, higher better). On average, working women with MBC missed 9.3 hours of work in the past 7 days due to their MBC. As symptom burden increased, respondents reported a lower ability to perform ADLs (p < 0.0001) and lower overall HRQoL (p < 0.0001). The ability to perform ADLs decreased with increase in the total number of agents received (p < 0.0001) and time since diagnosis (p < 0.0001). Conclusions: This survey provides valuable insights into health status, ability to perform ADLs, and lost productivity among patients with MBC. Future analyses will present results by tumor subtypes and drug treatments received.
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