| 1. |
- Bartuma, Katarina, et al.
(författare)
-
Discrepancies between estimated and perceived risk of cancer among individuals with hereditary nonpolyposis colorectal cancer
- 2007
-
Ingår i: Genetic Testing. - : Mary Ann Liebert Inc. - 1557-7473 .- 1090-6576. ; 11:2, s. 183-186
-
Tidskriftsartikel (refereegranskat)abstract
- Communicating cancer risk and recommending adequate control programs is central for genetic counseling. Individuals affected by hereditary nonpolyposis colorectal cancer (HNPCC) are at about 80% life-time risk of colorectal cancer and for female carriers 40-60% risk of endometrial cancer and 10-15% risk of ovarian cancer. The perceived risk among mutation carriers may, however, deviate from the risk communicated and has been demonstrated to influence adherence to control programs. We investigated the perceived cancer risk among HNPCC mutation carriers (n = 47) and correlated the findings to individual characteristics. A perceived risk of colorectal cancer above 60% was reported by 22/45 individuals, and only one out of five mutation carriers reported a perceived risk > 80%. Female mutation carriers, individuals below age 50, and individuals who received their oncogenetic counseling within 1 year prior to the study reported higher, albeit not significantly, perceived risks of colorectal cancer. Higher perceived risks were also reported by individuals who had lost a parent to HNPCC-related cancer at early age, whereas individuals with a personal history of cancer did not report a higher perceived risk. Regarding gynecological cancer, 6/18 females reported a perceived risk of 40-60% for endometrial cancer, whereas the remaining women both underestimated and overestimated their risk, and none of the women referred to the risk of ovarian cancer. We conclude that despite educational efforts and an increasing amount of data on the cancer risk in HNPCC, a minority of the mutation carriers report a perceived risk at the same level as that communicated during oncogenetic counseling.
|
|
| 2. |
- Nilsson, Martin P., et al.
(författare)
-
BRCAsearch : written pre-test information and BRCA1/2 germline mutation testing in unselected patients with newly diagnosed breast cancer
- 2018
-
Ingår i: Breast Cancer Research and Treatment. - : Springer Science and Business Media LLC. - 0167-6806 .- 1573-7217. ; 168:1, s. 117-126
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: To evaluate a simplified method of pre-test information and germline BRCA1/2 mutation testing. Methods: In a prospective, single-arm study, comprehensive BRCA1/2 testing was offered to unselected patients with newly diagnosed breast cancer at three hospitals in south Sweden (BRCAsearch, ClinicalTrials.gov Identifier: NCT02557776). Pre-test information was provided by a standardized invitation letter, but the patients could contact a genetic counselor for telephone genetic counseling if they felt a need for that. Noncarriers were informed about the test result through a letter. Mutation carriers were contacted and offered an appointment for in-person post-test genetic counseling. Results: During the period Feb 2, 2015–Aug 26, 2016, eight hundred and eighteen patients were invited to participate in the study. Through Jan 31, 2017, five hundred and forty-two (66.2%) of them consented to analysis of BRCA1 and BRCA2. Eleven pathogenic mutations were found (BRCA1, n = 2; BRCA2, n = 9), corresponding to a mutation prevalence of 2.0%. Six out of 11 fulfilled the Swedish BRCA testing criteria, and 9 out of 11 fulfilled the NCCN testing criteria. None of the BRCA-associated tumors were of the luminal A-like subtype. Very few patients contacted us for telephone genetic counseling or practical questions, suggesting that a majority felt that the written pre-test information was sufficient for them to make a decision on testing. Conclusions: Streamlining the process of pre-test information, genetic testing, and delivery of test results was feasible and was associated with an uptake of genetic testing in 2/3 of the breast cancer patients.
|
|
| 3. |
- Nilsson, Martin P., et al.
(författare)
-
High patient satisfaction with a simplified BRCA1/2 testing procedure : long-term results of a prospective study
- 2019
-
Ingår i: Breast Cancer Research and Treatment. - : Springer Science and Business Media LLC. - 0167-6806 .- 1573-7217. ; 173:2, s. 313-318
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: In the BRCAsearch study, unselected breast cancer patients were prospectively offered germline BRCA1/2 mutation testing through a simplified testing procedure. The purpose of the present study was to evaluate satisfaction with the BRCAsearch testing procedure and, furthermore, to report on uptake rates of prophylactic surgeries among mutation carriers. Methods: Pre-test information was provided by a standardized invitation letter instead of in-person genetic counseling. The patients were offered contact with a genetic counselor for telephone genetic counseling if they felt a need for that. Mutation carriers were telephoned and given a time for a face-to-face post-test genetic counseling appointment. Non-carriers were informed about the test result through a letter. One year after the test results were delivered, a study-specific questionnaire was mailed to the study participants who had consented to testing. The response rate was 83.1% (448 of 539). Results: A great majority (96.0%) of the responders were content with the method used for providing information within the study, and 98.7% were content with having pursued genetic testing. 11.1% answered that they would have liked to receive more oral information. In an adjusted logistic regression model, patients with somatic comorbidity (OR 2.56; P = 0.02) and patients born outside of Sweden (OR 3.54; P = 0.01) were more likely, and patients with occupations requiring at least 3 years of university or college education (OR 0.37; P = 0.06) were less likely to wanting to receive more oral information. All 11 mutation carriers attended post-test genetic counseling. At a median follow-up of 2 years, the uptake of prophylactic salpingo-oophorectomy was 100%, and the uptake of prophylactic mastectomy was 55%. Conclusions: Satisfaction with a simplified BRCA1/2 testing procedure was very high. Written pre-test information has now replaced in-person pre-test counseling for breast cancer patients in our health care region.
|
|
| 4. |
- Nilsson, Martin P., et al.
(författare)
-
Written pretest information and germline BRCA1/2 pathogenic variant testing in unselected breast cancer patients : predictors of testing uptake
- 2019
-
Ingår i: Genetics in Medicine. - : Elsevier BV. - 1098-3600. ; 21:1, s. 89-96
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: This study aimed to evaluate predictors of testing uptake among unselected breast cancer patients who were offered germline BRCA1/2 testing in a prospective study. Methods: Pretest information was provided by a standardized invitation letter instead of in-person counseling. Data was abstracted from medical records. Using multivariate logistic regressions, predictors of testing uptake were analyzed. Results: The overall uptake of testing was 67% (539 of 805 patients). Low uptake rates were found for patients aged ≥80 years (33%), and patients born outside of Europe (37%). In adjusted analysis, age ≥80 years (odds ratio [OR] 0.10; P = 0.002), psychiatric disorders (OR 0.46; P = 0.006), occupation requiring at least 3 years of university or college education (OR 2.03; P = 0.003), and breast cancer or ovarian cancer in first-degree or second-degree relatives (OR 1.66; P = 0.02) were independently associated with uptake of BRCA1/2 testing. Somatic comorbidity in patients aged <70 years was associated with lower testing uptake. Conclusion: Testing uptake varies across different subgroups according to patient-related factors that are readily available in the medical records. Knowledge about these factors enables health care professionals to identify patients who are less likely to pursue genetic testing.
|
|
