Cancer screening and risk-reducing behaviors of women seeking genetic cancer risk assessment for breast and ovarian cancers.

PURPOSE/OBJECTIVES To examine breast and ovarian cancer screening and risk-reducing behaviors of women seeking genetic cancer risk assessment (GCRA). DESIGN Descriptive, cross-sectional. SETTING An insurance-based clinic that serves high-risk patients in a southern California cancer center. SAMPLE 134 women with breast or ovarian cancer (affected group) and 80 women with a family history of breast or ovarian cancer (unaffected group). The mean age of the sample was 48 years (range = 21-86), 79% were Caucasian, 66% were married, 60% were college educated, and 78% had children. Most affected women had early-stage disease. Unaffected women had a family history of breast (86%) or ovarian (14%) cancer. METHODS Mailed surveys assessed pre-GCRA health behaviors and health and family histories. MAIN RESEARCH VARIABLES Breast cancer screening (mammograms, clinical breast examination [CBE], breast self-examination), ovarian cancer screening (CA-125, pelvic ultrasound), and breast and ovarian cancer risk-reducing strategies (tamoxifen, bilateral mastectomy, oral contraceptive pills, bilateral salpingo-oophorectomy). FINDINGS Twenty-one percent of the women who should have been having a mammogram had not had an annual examination as recommended, and 30% of affected women had not had annual CBEs. Few women took tamoxifen or oral contraceptive pills or had a bilateral salpingo-oophorectomy or bilateral mastectomy for cancer risk reduction. Twelve percent likely had unnecessary ovarian cancer screening. About 35% used other means, including herbs and homeopathy, for cancer prevention. CONCLUSIONS Nearly a third of the affected women had not had appropriate breast cancer screening. About 12% used unsubstantiated, potentially harmful cancer "prevention" measures (e.g., herbs). IMPLICATIONS FOR NURSING Nurses should assess clients' personal and family breast and ovarian cancer histories and promote cancer screening and risk-reducing behaviors that are appropriate for age and risk level.