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BMC Womens Health. 2008 Oct 20;8:18. doi: 10.1186/1472-6874-8-18.

Frequency format diagram and probability chart for breast cancer risk communication: a prospective, randomized trial.

Author information

1
Breast Diagnostic Clinic, Mayo Clinic, Rochester, Minnesota, USA. ghosh.karthik@mayo.edu

Abstract

BACKGROUND:

Breast cancer risk education enables women make informed decisions regarding their options for screening and risk reduction. We aimed to determine whether patient education regarding breast cancer risk using a bar graph, with or without a frequency format diagram, improved the accuracy of risk perception.

METHODS:

We conducted a prospective, randomized trial among women at increased risk for breast cancer. The main outcome measurement was patients' estimation of their breast cancer risk before and after education with a bar graph (BG group) or bar graph plus a frequency format diagram (BG+FF group), which was assessed by previsit and postvisit questionnaires.

RESULTS:

Of 150 women in the study, 74 were assigned to the BG group and 76 to the BG+FF group. Overall, 72% of women overestimated their risk of breast cancer. The improvement in accuracy of risk perception from the previsit to the postvisit questionnaire (BG group, 19% to 61%; BG+FF group, 13% to 67%) was not significantly different between the 2 groups (P = .10). Among women who inaccurately perceived very high risk (> or = 50% risk), inaccurate risk perception decreased significantly in the BG+FF group (22% to 3%) compared with the BG group (28% to 19%) (P = .004).

CONCLUSION:

Breast cancer risk communication using a bar graph plus a frequency format diagram can improve the short-term accuracy of risk perception among women perceiving inaccurately high risk.

PMID:
18937844
PMCID:
PMC2576054
DOI:
10.1186/1472-6874-8-18
[Indexed for MEDLINE]
Free PMC Article

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