Assessment of High Risk of Hereditary Breast and Ovarian Cancer (HBOC) and Acceptance for Genetic Testing Among Cases of Ovarian and Breast Cancer in Indian Set-up

Abstract

To identify cases needing genetic testing for hereditary breast and ovarian cancer (HBOC) syndrome among cases of breast and ovarian cancer and assess their acceptability for genetic testing. One hundred patients of breast and/or ovarian cancer were recruited. A series of family meetings were done with patient and close family members. The first meeting was for pedigree chart preparation and identification of cases for genetic testing (HBOC) as per NCCN 2013 criteria. Second family meeting was held for counselling about genetic testing. Third meeting was held for recording acceptance or refusal for genetic testing. For those refusing the test, reasons for refusal were recorded. Outcome measures including prevalence of high-risk cases, acceptance rate for genetic testing and factors affecting the above acceptance rates among high-risk women were statistically analysed. Out of 100 patients of breast and ovarian cancer recruited in the study, 88 were found to be at high risk of HBOC. The most common criterion for high risk among breast cancer cases was age below 45 years. Family history of breast or ovarian cancer was present in 3.03% cases of ovarian cancer and 11.76 cases of breast cancer. Eleven (16.66%) cases of epithelial ovarian carcinoma and six (27.27%) cases of breast carcinoma accepted genetic testing. Socioeconomic status was found to have statistically significant correlation (p < 0.001 and p = 0.030) with acceptance for genetic testing. Though it is a small sample study, there is huge burden of women needing genetic testing for HBOC. There is lack of awareness about familial nature of disease and low acceptance for genetic testing in our population. There is a significant effect of socioeconomic status on acceptance for genetic testing.