Korean J Women Health Nurs.  2021 Mar;27(1):49-57. 10.4069/kjwhn.2021.01.19.

What influences aromatase inhibitor continuation intention among breast cancer survivors?

Affiliations
  • 1College of Nursing, Yonsei University, Seoul, Korea
  • 2National Cancer Center, Goyang, Korea
  • 3College of Nursing, Mo-Im Kim Nursing Research Institute, Yonsei University, Seoul, Korea
  • 4College of Nursing, Research Institute of Nursing Science, Ajou University, Suwon, Korea

Abstract

Purpose
Aromatase inhibitors (AIs) are widely prescribed for postmenopausal women with breast cancer and are known to cause musculoskeletal pain. This study aimed to identify factors associated with AI continuation intention among breast cancer survivors (BCS).
Methods
A cross-sectional survey was conducted on 123 BCS (stages I–III), who had been taking AIs for at least 6 weeks. Participants were recruited from a cancer center in Goyang, Korea, from September to November 2019. Descriptive statistics, Welch analysis of variance, Pearson correlation coefficients, and simple linear regression were used for the analysis.
Results
Belief in endocrine therapy was a significant predictor of AI continuation intention (β=.66, p<.001). The majority of participants (87.0%) reported experiencing musculoskeletal pain since taking AIs and the score for the worst pain severity within 24 hours was 5.08±2.80 out of 10. Musculoskeletal pain, however, was not associated with AI continuation intention. Fear of cancer recurrence (FCR) was clinically significant (≥13) for 74.0% of the respondents (mean, 17.62±7.14). Musculoskeletal pain severity and pain interference were significantly associated with FCR (r=.21, p<.05; r=.35, p<.01, respectively). Pain interference was significantly associated with belief in endocrine therapy (r=–.18, p<.05).
Conclusion
AI continuation intention can be modified by reinforcing patients’ belief in endocrine therapy. Musculoskeletal pain may have a negative effect on belief in endocrine therapy and increase FCR among BCS. Thus, awareness of musculoskeletal pain during AI therapy should be raised and further research is required to develop multidisciplinary pain management strategies and clinical guidelines to reinforce belief in endocrine therapy.

Keyword

Aromatase inhibitor; Breast cancer; Medication adherence; Musculoskeletal pain

Reference

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