51
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Offit K, Tkachuk KA, Stadler ZK, Walsh MF, Diaz-Zabala H, Levin JD, Steinsnyder Z, Ravichandran V, Sharaf RN, Frey MK, Lipkin SM, Robson ME, Hamilton JG, Vijai J, Mukherjee S. Cascading After Peridiagnostic Cancer Genetic Testing: An Alternative to Population-Based Screening. J Clin Oncol 2020; 38:1398-1408. [PMID: 31922925 PMCID: PMC7193752 DOI: 10.1200/jco.19.02010] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2019] [Indexed: 12/27/2022] Open
Abstract
PURPOSE Despite advances in DNA sequencing technology and expanded medical guidelines, the vast majority of individuals carrying pathogenic variants of common cancer susceptibility genes have yet to be identified. An alternative to population-wide genetic screening of healthy individuals would exploit the trend for genetic testing at the time of cancer diagnosis to guide therapy and prevention, combined with augmented familial diffusion or "cascade" of genomic risk information. METHODS Using a multiple linear regression model, we derived the time interval to detect an estimated 3.9 million individuals in the United States with a pathogenic variant in 1 of 18 cancer susceptibility genes. We analyzed the impact of the proportion of incident patients sequenced, varying observed frequencies of pathogenic germline variants in patients with cancer, differential rates of diffusion of genetic information in families, and family size. RESULTS The time to detect inherited cancer predisposing variants in the population is affected by the extent of cascade to first-, second-, and third-degree relatives (FDR, SDR, TDR, respectively), family size, prevalence of mutations in patients with cancer, and the proportion of patients with cancer sequenced. In a representative scenario, assuming a 7% prevalence of pathogenic variants across cancer types, an average family size of 3 per generation, and 15% of incident patients with cancer in the United States undergoing germline testing, the time to detect all 3.9 million individuals with pathogenic variants in 18 cancer susceptibility genes would be 46.2, 22.3, 13.6, and 9.9 years if 10%, 25%, 50%, and 70%, respectively, of all FDR, SDR, and TDR were tested for familial mutations. CONCLUSION Peridiagnostic and cascade cancer genetic testing offers an alternative strategy to achieve population-wide identification of cancer susceptibility mutations.
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Affiliation(s)
- Kenneth Offit
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Kaitlyn A. Tkachuk
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
| | - Zsofia K. Stadler
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Michael F. Walsh
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
| | - Hector Diaz-Zabala
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
| | - Jeffrey D. Levin
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
| | - Zoe Steinsnyder
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
| | - Vignesh Ravichandran
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
| | - Ravi N. Sharaf
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Melissa K. Frey
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Steven M. Lipkin
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Mark E. Robson
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
- Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Jada G. Hamilton
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Joseph Vijai
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
- Weill Cornell College of Medicine, Cornell University, New York, NY
| | - Semanti Mukherjee
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center; and Program in Cancer Biology and Genetics, Sloan Kettering Institute, New York, NY
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52
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Yeh VM, Bergner EM, Bruce MA, Kripalani S, Mitrani VB, Ogunsola TA, Wilkins CH, Griffith DM. Can Precision Medicine Actually Help People Like Me? African American and Hispanic Perspectives on the Benefits and Barriers of Precision Medicine. Ethn Dis 2020; 30:149-158. [PMID: 32269456 DOI: 10.18865/ed.30.s1.149] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Objective To better understand African American and Hispanic perspectives on the potential benefits of precision medicine, along with the potential barriers that may prevent precision medicine from being equally beneficial to all. We also sought to identify if there were differences between African American and Hispanic perspectives. Design Six semi-structured focus groups were conducted between May 2017 and February 2018 to identify benefits and barriers to precision medicine. Three groups occurred in Nashville, TN with African American participants and three groups occurred in Miami, FL with Hispanic participants. Setting At community-based and university sites convenient to community partners and participants. Participants A total of 55 individuals participated (27 in Nashville, 28 in Miami). The majority of participants were women (76.5%) and the mean age of participants was 56.2 years old. Results Both African Americans and Hispanics believed precision medicine has the potential to improve medicine and health outcomes by individualizing care and decreasing medical uncertainty. However, both groups were concerned that inadequacies in health care institutions and socioeconomic barriers would prevent their communities from receiving the full benefits of precision medicine. African Americans were also concerned that the genetic and non-genetic personal information revealed through precision medicine would make African Americans further vulnerable to provider racism and discrimination in and outside of health care. Conclusions While these groups believed precision medicine might yield benefits for health outcomes, they are also skeptical about whether African Americans and Hispanics would actually benefit from precision medicine given current structural limitations and disparities in health care access and quality.
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Affiliation(s)
- Vivian M Yeh
- Center for Clinical Quality and Implementation Research, Vanderbilt University Medical Center, Nashville, TN
| | - Erin M Bergner
- Center for Research on Men's Health, Vanderbilt University, Nashville, TN
| | - Marino A Bruce
- Center for Research on Men's Health, Vanderbilt University, Nashville, TN.,Center for Medicine, Health, and Society, Vanderbilt University, Nashville, TN
| | - Sunil Kripalani
- Center for Clinical Quality and Implementation Research, Vanderbilt University Medical Center, Nashville, TN.,Division of General Internal Medicine and Public Health, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Victoria B Mitrani
- University of Miami, School of Nursing and Health Studies, Coral Gables, FL
| | | | - Consuelo H Wilkins
- Department of Internal Medicine, Meharry Medical College, Nashville, TN.,Meharry-Vanderbilt Alliance, Vanderbilt University Medical Center, Nashville, TN.,Division of Geriatrics, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Derek M Griffith
- Center for Research on Men's Health, Vanderbilt University, Nashville, TN.,Center for Medicine, Health, and Society, Vanderbilt University, Nashville, TN
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53
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Hillyer GC, Schmitt KM, Reyes A, Cruz A, Lizardo M, Schwartz GK, Terry MB. Community education to enhance the more equitable use of precision medicine in Northern Manhattan. J Genet Couns 2020; 29:247-258. [PMID: 32157769 DOI: 10.1002/jgc4.1244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 02/15/2020] [Accepted: 02/17/2020] [Indexed: 12/30/2022]
Abstract
Focusing screening and treatment to those most likely to benefit is the promise of precision medicine but inequitable distribution of precision medicine innovations may exacerbate health disparities. We investigated whether complex genomic concepts can be successfully communicated to diverse populations. Incorporating principles of Community-based Participatory Research, we created a precision medicine curriculum tailored to the needs of our predominantly Hispanic community. We administered the curriculum over 26 months, assessed pre- and post-test comprehension of 8 genetics-related terms, and compared comprehension differences based on demography and health literacy. In total, 438 individuals completed pre-/post-test assessments. At pre-test, 45.6% scored ≥75% across eight major constructs; 66.7% at post-test. Comprehension increased for 7/8 terms with greatest pre/post-test increases for 'mutation' (55% to 78%) and 'sporadic' (34% to 59%). Mean pre-test comprehension scores (≥75%) were lower for Spanish versus. English speakers; mean post-test scores were equivalent. No heterogeneity by demographics or health literacy was observed. We demonstrate that a brief community educational program can improve knowledge of complex genomic concepts. Interventions to increase understanding of genomic concepts underlying precision medicine are key to patients making informed treatment and prevention decisions and may lead to more equitable uptake of precision medicine initiatives.
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Affiliation(s)
- Grace C Hillyer
- Department of Epidemiology, Mailman School of Public Health, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center of Columbia University, New York, NY, USA
| | - Karen M Schmitt
- Herbert Irving Comprehensive Cancer Center of Columbia University, New York, NY, USA.,New York Presbyterian Hospital, New York, NY, USA
| | - Andria Reyes
- Herbert Irving Comprehensive Cancer Center of Columbia University, New York, NY, USA
| | - Alejandro Cruz
- Herbert Irving Comprehensive Cancer Center of Columbia University, New York, NY, USA
| | - Maria Lizardo
- Northern Manhattan Improvement Corporation, New York, NY, USA
| | - Gary K Schwartz
- Herbert Irving Comprehensive Cancer Center of Columbia University, New York, NY, USA.,Columbia University Irving Medical Center, New York, NY, USA
| | - Mary Beth Terry
- Department of Epidemiology, Mailman School of Public Health, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center of Columbia University, New York, NY, USA
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54
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Petersen C. User-focused data sharing agreements: a foundation for the genomic future. JAMIA Open 2020; 2:402-406. [PMID: 32025634 PMCID: PMC6993993 DOI: 10.1093/jamiaopen/ooz043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/21/2019] [Accepted: 09/04/2019] [Indexed: 12/30/2022] Open
Abstract
Data sharing agreements that clearly describe what individuals are agreeing to and what responsibilities data stewards will undertake are crucial for the establishment, maintenance, and flourishing of genomic datasets. To optimize genomic data resources, researchers, care professionals, and informaticians must regard system design, user objectives, and environmental considerations through users' eyes, identifying fundamental values on which to build and potential barriers to success that must be avoided. Design of agreements that promote desired data sharing and protect valuable data resources as necessary begins with a review of user interests and concerns. Nontraditional approaches for informed consent (eg, abbreviated informed consent, electronic informed consent, and dynamic consent) can facilitate achievement of data donors' privacy-related goals while making data available to researchers. Transparency in individual-researcher interactions, recognition and accommodation of cultural differences, and identification of shared needs and goals create a foundation for data sharing agreements that work over short and long terms.
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Affiliation(s)
- Carolyn Petersen
- Division of Biomedical Statistics and Informatics, Global Business Solutions, Mayo Clinic, Rochester, Minnesota, USA
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55
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Hurtado-de-Mendoza A, Graves KD, Gómez-Trillos S, Carrera P, Campos C, Anderson L, Luta G, Peshkin BN, Schwartz MD, Cupertino AP, Gonzalez N, Sheppard VB. Culturally Targeted Video Improves Psychosocial Outcomes in Latina Women at Risk of Hereditary Breast and Ovarian Cancer. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E4793. [PMID: 31795362 PMCID: PMC6926842 DOI: 10.3390/ijerph16234793] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/21/2019] [Accepted: 11/23/2019] [Indexed: 12/17/2022]
Abstract
Latina women at risk of hereditary breast and ovarian cancer (HBOC) have lower awareness, knowledge, and use of genetic counseling and testing services (GCT) than non-Latina Whites. Few interventions have been developed to reduce these disparities among at-risk Latinas. This pilot study assessed the impact of a culturally targeted narrative video developed by our team. The study included 40 Latina immigrants living in the United States who were at risk of HBOC, including affected and unaffected women. We assessed pre-post differences in psychosocial outcomes. Participants were 47.35 years old on average (SD = 9.48). Most (70%) were unaffected with cancer, had an annual income of $40,000 or less (65%), an education of High School or less (62.5%), and were uninsured (77.5%). The video significantly enhanced knowledge (p < 0.001), positive attitudes (p < 0.05), anticipatory positive emotions (p < 0.05), and intentions to participate in counseling (p < 0.001). Importantly, the video also significantly reduced negative attitudes (p < 0.05), and attitudinal ambivalence (p < 0.001). The culturally targeted video shows preliminary evidence in improving psychosocial outcomes related to GCT uptake in Latinas at risk for HBOC. This intervention is a promising easily-disseminable strategy to address disparities in GCT utilization.
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Affiliation(s)
- Alejandra Hurtado-de-Mendoza
- Department of Oncology, Georgetown University Medical Center, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA; (K.D.G.); (S.G.-T.); (G.L.); (B.N.P.); (M.D.S.)
- Jess and Mildred Fisher Center for Hereditary Cancer and Clinical Genomics Research, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA
| | - Kristi D. Graves
- Department of Oncology, Georgetown University Medical Center, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA; (K.D.G.); (S.G.-T.); (G.L.); (B.N.P.); (M.D.S.)
- Jess and Mildred Fisher Center for Hereditary Cancer and Clinical Genomics Research, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA
| | - Sara Gómez-Trillos
- Department of Oncology, Georgetown University Medical Center, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA; (K.D.G.); (S.G.-T.); (G.L.); (B.N.P.); (M.D.S.)
- Jess and Mildred Fisher Center for Hereditary Cancer and Clinical Genomics Research, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA
| | - Pilar Carrera
- Department of Social Psychology and Methodology, Universidad Autónoma de Madrid, 28049 Madrid, Spain;
| | - Claudia Campos
- Nueva Vida, DC Office—801 N Pitt St., Suite 113, Alexandria, VA 22314, USA;
| | - Lyndsay Anderson
- College of Health and Human Services, School of Nursing, California State University, Sacramento, CA 95819, USA;
| | - George Luta
- Department of Oncology, Georgetown University Medical Center, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA; (K.D.G.); (S.G.-T.); (G.L.); (B.N.P.); (M.D.S.)
- Department of Biostatistics, Bioinformatics and Biomathematics, 4000 Reservoir Rd., NW, Washington, DC 20057, USA
| | - Beth N. Peshkin
- Department of Oncology, Georgetown University Medical Center, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA; (K.D.G.); (S.G.-T.); (G.L.); (B.N.P.); (M.D.S.)
- Jess and Mildred Fisher Center for Hereditary Cancer and Clinical Genomics Research, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA
| | - Marc D. Schwartz
- Department of Oncology, Georgetown University Medical Center, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA; (K.D.G.); (S.G.-T.); (G.L.); (B.N.P.); (M.D.S.)
- Jess and Mildred Fisher Center for Hereditary Cancer and Clinical Genomics Research, 3300 Whitehaven Street, Suite 4100, Washington, DC 20007, USA
| | - Ana-Paula Cupertino
- Cancer Prevention and Control Program, John Theurer Cancer Center, Hackensack University Medical Center, 40 Prospect Avenue, Office number 316, Hackensack, NJ 07601, USA;
| | - Nathaly Gonzalez
- Capital Breast Care Center, 1000 New Jersey Ave, SE, Washington, DC 20003, USA;
| | - Vanessa B. Sheppard
- Department of Health Behavior Policy, Virginia Commonwealth University, Richmond, VA 23298, USA;
- Massey Cancer Center, Office of Health Equity and Disparities Research, Richmond, VA 23298, USA
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56
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Senft N, Sanderson M, Selove R, Blot WJ, King S, Gilliam K, Kundu S, Steinwandel M, Sternlieb SJ, Warren Andersen S, Friedman DL, Connors E, Fadden MK, Freiberg M, Wells QS, Canedo J, Tyndale RF, Young RP, Hopkins RJ, Tindle HA. Attitudes toward Precision Treatment of Smoking in the Southern Community Cohort Study. Cancer Epidemiol Biomarkers Prev 2019; 28:1345-1352. [PMID: 31160346 PMCID: PMC6679740 DOI: 10.1158/1055-9965.epi-19-0179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/10/2019] [Accepted: 05/28/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Precision interventions using biological data may enhance smoking treatment, yet are understudied among smokers who are disproportionately burdened by smoking-related disease. METHODS We surveyed smokers in the NCI-sponsored Southern Community Cohort Study, consisting primarily of African-American, low-income adults. Seven items assessed attitudes toward aspects of precision smoking treatment, from undergoing tests to acting on results. Items were dichotomized as favorable (5 = strongly agree/4 = agree) versus less favorable (1 = strongly disagree/2 = disagree/3 = neutral); a summary score reflecting generalized attitudes was also computed. Multivariable logistic regression tested independent associations of motivation (precontemplation, contemplation, and preparation) and confidence in quitting (low, medium, and high) with generalized attitudes, controlling for sociodemographic factors and nicotine dependence. RESULTS More than 70% of respondents endorsed favorable generalized attitudes toward precision medicine, with individual item favorability ranging from 64% to 83%. Smokers holding favorable generalized attitudes reported higher income and education (P < 0.05). Predicted probabilities of favorable generalized attitudes ranged from 63% to 75% across motivation levels [contemplation vs. precontemplation: adjusted odds ratio (AOR) = 2.10, 95% confidence interval (CI), 1.36-3.25, P = 0.001; preparation vs. precontemplation: AOR = 1.83, 95% CI, 1.20-2.78, P = 0.005; contemplation vs. preparation: AOR = 1.15, 95% CI, 0.75-1.77, P = 0.52] and from 59% to 78% across confidence (medium vs. low: AOR = 1.91, 95% CI, 1.19-3.07, P = 0.007; high vs. low: AOR = 2.62, 95% CI, 1.68-4.10, P < 0.001; medium vs. high: AOR = 0.73, 95% CI, 0.48-1.11, P = 0.14). CONCLUSIONS Among disproportionately burdened community smokers, most hold favorable attitudes toward precision smoking treatment. Individuals with lower motivation and confidence to quit may benefit from additional intervention to engage with precision smoking treatment. IMPACT Predominantly favorable attitudes toward precision smoking treatment suggest promise for future research testing their effectiveness and implementation.
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Affiliation(s)
- Nicole Senft
- Vanderbilt University Medical Center, Nashville, Tennessee.
| | | | | | - William J Blot
- Vanderbilt University Medical Center, Nashville, Tennessee
| | - Stephen King
- Vanderbilt University Medical Center, Nashville, Tennessee
| | - Karen Gilliam
- Vanderbilt University Medical Center, Nashville, Tennessee
| | - Suman Kundu
- Vanderbilt University Medical Center, Nashville, Tennessee
| | | | | | - Shaneda Warren Andersen
- Vanderbilt University Medical Center, Nashville, Tennessee
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | | | - Erin Connors
- Tennessee State University, Nashville, Tennessee
| | | | - Matthew Freiberg
- Vanderbilt University Medical Center, Nashville, Tennessee
- Geriatric Research Education and Clinical Centers (GRECC), Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - Quinn S Wells
- Vanderbilt University Medical Center, Nashville, Tennessee
| | - Juan Canedo
- Meharry Medical College, Nashville, Tennessee
| | - Rachel F Tyndale
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, University of Toronto, Ontario, Canada
- Departments of Pharmacology and Psychiatry, University of Toronto, Ontario, Canada
| | | | | | - Hilary A Tindle
- Vanderbilt University Medical Center, Nashville, Tennessee
- Geriatric Research Education and Clinical Centers (GRECC), Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
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57
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Blell M, Hunter MA. Direct-to-Consumer Genetic Testing's Red Herring: "Genetic Ancestry" and Personalized Medicine. Front Med (Lausanne) 2019; 6:48. [PMID: 30984759 PMCID: PMC6449432 DOI: 10.3389/fmed.2019.00048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/21/2019] [Indexed: 12/30/2022] Open
Abstract
The growth in the direct-to-consumer genetic testing industry poses a number of challenges for healthcare practice, among a number of other areas of concern. Several companies providing this service send their customers reports including information variously referred to as genetic ethnicity, genetic heritage, biogeographic ancestry, and genetic ancestry. In this article, we argue that such information should not be used in healthcare consultations or to assess health risks. Far from representing a move toward personalized medicine, use of this information poses risks both to patients as individuals and to racialized ethnic groups because of the way it misrepresents human genetic diversity.
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Affiliation(s)
- Mwenza Blell
- Policy, Ethics and Life Sciences Research Centre, School of Geography, Politics and Sociology, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - M A Hunter
- Department of Philosophy, Logic, and Scientific Method, Centre for Philosophy of Natural and Social Science (CPNSS), The London School of Economics and Political Science, London, United Kingdom.,Philosophy Department, University of California, Davis, Davis, CA, United States
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58
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Canedo JR, Miller ST, Myers HF, Sanderson M. Racial and ethnic differences in knowledge and attitudes about genetic testing in the US: Systematic review. J Genet Couns 2019; 28:587-601. [PMID: 30663831 DOI: 10.1002/jgc4.1078] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 11/25/2018] [Accepted: 12/03/2018] [Indexed: 12/26/2022]
Abstract
Precision medicine has grown over the past 20 years with the availability of genetic tests and has changed the one-size-fits-all paradigm in medicine. Precision medicine innovations, such as newly available genetic tests, could potentially widen racial and ethnic disparities if access to them is unequal and if interest to use them differs across groups. The objective of this systematic review was to synthesize existing evidence on racial and ethnic differences in knowledge of and attitudes toward genetic testing among adult patients and the general public in the US, focusing on research about the use of genetic testing in general, not disease-specific tests. Twelve articles published in 1997-2017 met inclusion and exclusion criteria, with 10 including knowledge variables and seven including attitude variables. Studies found consistent patterns of lower awareness of genetic testing in general among non-Whites compared to Whites, lower factual knowledge scores among Blacks and Hispanics/Latinos, and mixed findings of differences in awareness of direct-to-consumer (DTC) genetic testing or the term precision medicine. Blacks, Hispanics/Latinos, and non-Whites generally had more concerns about genetic testing than Whites. The findings suggest that patients and the general public need access to culturally appropriate educational material about the use of genetic testing in precision medicine.
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Affiliation(s)
- Juan R Canedo
- Department of Internal Medicine, Meharry Medical College, Nashville, Tennessee
| | | | - Hector F Myers
- Center for Medicine, Health and Society, Vanderbilt University, Nashville, Tennessee
| | - Maureen Sanderson
- Department of Family and Community Medicine, Meharry Medical College, Nashville, Tennessee
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