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Breast cancer patients' treatment expectations after exposure to the decision aid program adjuvant online: the influence of numeracy.

Publication ,  Journal Article
Lipkus, IM; Peters, E; Kimmick, G; Liotcheva, V; Marcom, P
Published in: Med Decis Making
2010

The decision aid called ''Adjuvant Online'' (Adjuvant! for short) helps breast cancer patients make treatment decisions by providing numerical estimates of treatment efficacy (e.g., 10-y relapse or survival). Studies exploring how patients' numeracy interacts with the estimates provided by Adjuvant! are lacking. Pooling across 2 studies totaling 105 women with estrogen receptor-positive, early-stage breast cancer, the authors explored patients' treatment expectations, perceived benefit from treatments, and confidence of personal benefit from treatments. Patients who were more numerate were more likely to provide estimates of cancer-free survival that matched the estimates provided by Adjuvant! for each treatment option compared with patients with lower numeracy (odds ratios of 1.6 to 2.4). As estimates of treatment efficacy provided by Adjuvant! increased, so did patients' estimates of cancer-free survival (0.37 > r(s) > 0.48) and their perceptions of treatment benefit from hormonal therapy (r(s) = 0.28) and combined therapy (r(s) = 0.27). These relationships were significantly more pronounced for those with higher numeracy, especially for perceived benefit of combined therapy. Results suggest that numeracy influences a patient's ability to interpret numerical estimates of treatment efficacy from decision aids such as Adjuvant!.

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Published In

Med Decis Making

DOI

EISSN

1552-681X

Publication Date

2010

Volume

30

Issue

4

Start / End Page

464 / 473

Location

United States

Related Subject Headings

  • Survival Rate
  • Recurrence
  • Receptors, Estrogen
  • Pilot Projects
  • Internet
  • Humans
  • Health Policy & Services
  • Female
  • Decision Making
  • Breast Neoplasms
 

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Lipkus, I. M., Peters, E., Kimmick, G., Liotcheva, V., & Marcom, P. (2010). Breast cancer patients' treatment expectations after exposure to the decision aid program adjuvant online: the influence of numeracy. Med Decis Making, 30(4), 464–473. https://doi.org/10.1177/0272989X09360371
Lipkus, Isaac M., Ellen Peters, Gretchen Kimmick, Vlayka Liotcheva, and Paul Marcom. “Breast cancer patients' treatment expectations after exposure to the decision aid program adjuvant online: the influence of numeracy.Med Decis Making 30, no. 4 (2010): 464–73. https://doi.org/10.1177/0272989X09360371.
Lipkus IM, Peters E, Kimmick G, Liotcheva V, Marcom P. Breast cancer patients' treatment expectations after exposure to the decision aid program adjuvant online: the influence of numeracy. Med Decis Making. 2010;30(4):464–73.
Lipkus, Isaac M., et al. “Breast cancer patients' treatment expectations after exposure to the decision aid program adjuvant online: the influence of numeracy.Med Decis Making, vol. 30, no. 4, 2010, pp. 464–73. Pubmed, doi:10.1177/0272989X09360371.
Lipkus IM, Peters E, Kimmick G, Liotcheva V, Marcom P. Breast cancer patients' treatment expectations after exposure to the decision aid program adjuvant online: the influence of numeracy. Med Decis Making. 2010;30(4):464–473.
Journal cover image

Published In

Med Decis Making

DOI

EISSN

1552-681X

Publication Date

2010

Volume

30

Issue

4

Start / End Page

464 / 473

Location

United States

Related Subject Headings

  • Survival Rate
  • Recurrence
  • Receptors, Estrogen
  • Pilot Projects
  • Internet
  • Humans
  • Health Policy & Services
  • Female
  • Decision Making
  • Breast Neoplasms