Efficacy of a simple, low-cost educational intervention in improving knowledge about risks and benefits of screening mammography.
OBJECTIVE
To assess the efficacy of a minimal cost and involvement educational intervention in improving women's knowledge about screening mammography and to explore patient perceptions of the educational intervention.


METHODS
During the study period (March 10, 2005, to July 1, 2005), 1446 participants in the Mayo Mammography Health Study scheduled for a mammogram within 4 weeks at the Mayo Clinic in Rochester, Minn, were randomized to 2 study groups and mailed surveys about mammograms. The 2 groups received separate surveys; both surveys contained knowledge-based questions about mammography, but the educational intervention group survey also contained qualitative questions that assessed the educational pamphlets.


RESULTS
Of the 668 surveys returned (responders), 248 (34.4%) were from the control group, and 420 (58.3%) were from the intervention group. Approximately 80% of responders had had more than 7 prior mammograms. Significant increases in knowledge about mammography were found in the educational intervention compared with the control group on questions regarding age to begin screening mammography (67.9% vs 54.4%; P < .001), recommended frequency of mammograms (86.4% vs 75.4%; P < .001), overall reduction in mortality due to screening mammography (55.2% vs 8.9%; P < .001), and proportions of women who required follow-up mammograms (35.5% vs 14.9%; P < .001) or biopsy (59.5% vs 13.3%; P < .001). Qualitative data results indicated that most women who received the educational intervention found the pamphlets helpful and informative despite having had many previous mammograms.


CONCLUSIONS
The results suggest that providing women scheduled for screening mammograms with physician-approved educational material before their appointment significantly increases knowledge about screening mammography, risks and benefits, and possible follow-up.
Haakenson
Caroline P
CP
Mayo Medical School, Rochester, Minn 55905, USA.
Vickers
Kristin S
KS
Cha
Stephen S
SS
Vachon
Celine M
CM
Thielen
Jacqueline M
JM
Kircher
Kyle J
KJ
Pruthi
Sandhya
S
D001943:Breast Neoplasms / Q000517:prevention & control*; D003362:Cost-Benefit Analysis; D003657:Decision Making; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008327:Mammography; D008403:Mass Screening; D008875:Middle Aged; D010174:Pamphlets; D010353:Patient Education as Topic / Q000191:economics; D017060:Patient Satisfaction