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Open Access Women's Responses to Information on Mammographic Breast Density Réactions des femmes aux données mammographiques sur la densité du tissu mammaire

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The objective of this study was to determine the negative and positive outcomes of providing mammographic breast density (MBD) information to participants of a screening program. A randomized experiment was conducted with a sample of 618 women 50 years or older with MBD greater than 50% of breast volume. The intervention consisted of reporting the presence of MBD in the screening mammography results letter that was sent along with an information pamphlet. Compared to the controls, more women in the intervention group described the term breast density correctly and recognized it as a risk factor for breast cancer. Although at the 4-week follow-up the intervention group indicated that they were "very likely" to have an annual clinical breast examination more frequently than controls, no differences were detected at 6 months. There were no significant differences on other behavioural or psychological measures, although at the 4-week follow-up the control group perceived their risk for breast cancer, relative to other women their age, as "a lot lower" than did women in the intervention group. The results demonstrate a feasible and non-threatening way to pro vide women with important personalized information about breast cancer risk.

French
Les auteurs de cette étude se sont attachés à déterminer les aspects négatifs et positifs de la divulgation des résultats de mammographie sur la densité du tissu mammaire (DTM) aux participantes d'un programme de dépistage du cancer du sein. Ils ont mené une expérience aléatoire auprès d'un échantillon de 618 femmes âgées de 50 ans et plus, montrant une DTM supér ieure à 5 %. L'expérience consistait à préciser, dans la lettre sur les résultats de mammographie destinée aux intéressées, la DTM obtenue et à joindre un dépliant sur le sujet. Comparativement aux groupes témoins, un plus grand nombre de sujets du groupe expérimental ont expliqué correctement la notion de densité du tissu mammaire et admis qu'il s'agissait d'un facteur de risque de cancer du sein. Lorsqu'on a consulté les participantes quatre semaines plus tard, celles du groupe expérimental ont été plus nombreuses que celles des groupes témoins à indiquer qu'elles allaient « très probablement » demander de subir un examen annuel de dépistage; toutefois, au bout de six mois, on n'a constaté aucune différence notable entre les deux groupes. Aucune différence significative n'a été relevée non plus en ce qui concerne les autres critères comportementaux ou psychologiques, malgré le fait que le risque perçu de cancer du sein était « largement inférieur » chez les groupes. Les auteurs proposent ici un moyen d'information personnalisé sur le risque de cancer du sein, qui a l'avantage d'être réalisable et non alarmiste.

33 References.

No Supplementary Data.
No Data/Media
No Metrics

Keywords: BREAST CANCER SCREENING; BREAST DENSITY; MAMMOGRAPHY; RISK COMMUNICATION

Document Type: Research Article

Publication date: 2007-03-01

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