Psychosocial factors related to non-persistence with adjuvant endocrine therapy among women with breast cancer: the Breast Cancer Quality of Care Study (BQUAL)

Dawn L. Hershman, Lawrence H. Kushi, Grace Clarke Hillyer, Ellie Coromilas, Donna Buono, Lois Lamerato, Dana H. Bovbjerg, Jeanne S. Mandelblatt, Wei Yann Tsai, Xiaobo Zhong, Judith S. Jacobson, Jason D. Wright, Alfred I. Neugut

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Non-adherence to adjuvant endocrine therapy (ET) for breast cancer (BC) is common. Our goal was to determine the associations between psychosocial factors and ET non-persistence. We recruited women with BC receiving care in an integrated healthcare system between 2006 and 2010. Using a subset of patients treated with ET, we investigated factors related to ET non-persistence (discontinuation) based on pharmacy records (≥90 days gap). Serial interviews were conducted at baseline and every 6 months. The Functional Assessment of Cancer Therapy (FACT), Medical Outcomes Survey, Treatment Satisfaction Questionnaire (TSQM), Impact of Events Scale (IES), Interpersonal Processes of Care measure, and Decision-making beliefs and concerns were measured. Multivariate models assessed factors associated with non-persistence. Of the 523 women in our final cohort who initiated ET and had a subsequent evaluation, 94 (18 %) were non-persistent over a 2-year follow-up. The cohort was primarily white (74.4 %), stage 1 (60.6 %), and on an aromatase inhibitor (68.1 %). Women in the highest income category had a lower odds of being non-persistent (OR 0.43, 95 % CI 0.23–0.81). Quality of life and attitudes toward ET at baseline were associated with non-persistence. At follow-up, the FACT, TSQM, and IES were associated with non-persistence (p < 0.001). Most women continued ET. Women who reported a better attitude toward ET, better quality of life, and more treatment satisfaction, were less likely to be non-persistent and those who reported intrusive/avoidant thoughts were more likely to be non-persistent. Interventions to enhance the psychosocial well-being of patients should be evaluated to increase adherence.

Original languageEnglish (US)
Pages (from-to)133-143
Number of pages11
JournalBreast Cancer Research and Treatment
Volume157
Issue number1
DOIs
StatePublished - May 1 2016
Externally publishedYes

Keywords

  • Adherence
  • Breast cancer
  • Psychosocial factors
  • Quality of life

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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