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J Cancer Epidemiol. 2012;2012:545062. doi: 10.1155/2012/545062. Epub 2012 Jun 28.

Worry is good for breast cancer screening: a study of female relatives from the ontario site of the breast cancer family registry.

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1
Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, ON, Canada M5T 3L9.

Abstract

BACKGROUND:

Few prospective studies have examined associations between breast cancer worry and screening behaviours in women with elevated breast cancer risks based on family history.

METHODS:

This study included 901 high familial risk women, aged 23-71 years, from the Ontario site of the Breast Cancer Family Registry. Self-reported breast screening behaviours at year-one followup were compared between women at low (N = 305), medium (N = 433), and high (N = 163) levels of baseline breast cancer worry using logistic regression. Nonlinear relationships were assessed using likelihood ratio tests.

RESULTS:

A significant non-linear inverted "U" relationship was observed between breast cancer worry and mammography screening (P = 0.034) for all women, where women at either low or high worry levels were less likely than those at medium to have a screening mammogram. A similar significant non-linear inverted "U" relationship was also found among all women and women at low familial risk for worry and screening clinical breast examinations (CBEs).

CONCLUSIONS:

Medium levels of cancer worries predicted higher rates of screening mammography and CBE among high-risk women.

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