Journal of Genetic Counseling

, Volume 26, Issue 3, pp 541–547 | Cite as

Parents’ Understanding of Genetics and Heritability

  • Brittany Harding
  • Rylan Egan
  • Peter Kannu
  • Jennifer J. MacKenzie
Original Research
  • 419 Downloads

Abstract

Parents have the opportunity to educate their children to facilitate behaviours and lifestyle habits that may prevent or delay genetic disease, or mitigate predispositions within the family. We sought to determine parents’ understanding of genetic knowledge and heritability. Using a quantitative survey methodology 108 volunteer participants were surveyed from a convenience sample of all parents/caregivers within the waiting room of a general children’s outpatient clinic. Results indicated that average genetic knowledge levels were fairly high, with the majority of participants scoring 70–80 % correct on knowledge-based questions. Further, scores were found to be positively correlated with education, but inversely correlated with self-perceived knowledge. This finding suggests that participants with less experience tended to overestimate their knowledge. We suggest that gaps in knowledge of genetics and heritability could be improved by using educational interventions such as media campaigns, provision of informational brochures, or changes to current high school curriculum which would increase exposure to genetics and heritability for both parents and children.

Keywords

Counselling, genetic Education measurement Families Genetic diseases, inborn Health education Health knowledge, attitudes, practice Humans Public health Service, genetic 

Notes

Acknowledgments

We wish to thank the participants for volunteering to contribute to this study, Dr. D. Klinger who provided feedback on the data analysis, and Rachael Pinsky and Brian Siu who helped to collect the data.

Compliance with Ethical Standards

Conflict of Interest

Ms. Brittany Harding, Dr. Rylan Egan, Dr. Peter Kannu, and Dr. Jennifer J. MacKenzie declare that they have no conflict of interest.

Funding

No funding was obtained for this study.

Human Studies and Informed Consent

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000 (5). Informed consent was obtained from all patients for being included in the study. The study received compliance from the Health Sciences and Affiliated Teaching Hospitals Research Ethics Board at Queen’s University.

References

  1. Bannon, S. A., Mork, M., Vilar, E., Peterson, S. K., & Lu, K. (2014). Patient-reported disease knowledge and educational needs in Lynch syndrome: findings of an interactive multidisciplinary patient conference. Hereditary Cancer in Clinical Practice, 12(1), 1.CrossRefPubMedPubMedCentralGoogle Scholar
  2. Blanton, H., Pelham, B. W., DeHart, T., & Carvallo, M. (2001). Overconfidence as Dissonance Reduction. Journal of Experimental Social Psychology, 37(5), 373–385. doi: 10.1006/jesp.2000.1458.CrossRefGoogle Scholar
  3. Cameron, L. D., Marteau, T. M., Brown, P. M., Klein, W. M., & Sherman, K. A. (2012). Communication strategies for enhancing understanding of the behavioral implications of genetic and biomarker tests for disease risk: the role of coherence. Journal of Behavioral Medicine, 35(3), 286–298.CrossRefPubMedGoogle Scholar
  4. Condit, C. M., & Bates, B. (2005). How lay people respond to messages about genetics, health, and race. Clinical Genetics, 68(2), 97–105.CrossRefPubMedGoogle Scholar
  5. Condit, C. M., & Shen, L. (2011). Public understanding of risks from gene-environment interaction in common diseases: implications for public communications. Public Health Genomics, 14(2), 115–124.CrossRefPubMedGoogle Scholar
  6. Etchegary, H., Cappelli, M., Potter, B., Vloet, M., Graham, I., Walker, M., & Wilson, B. (2010). Attitude and knowledge about genetics and genetic testing. Public Health Genomics, 13(2), 80–88.CrossRefPubMedGoogle Scholar
  7. Farrimond, H. R., Kelly, S. E. (2013). Public viewpoints on new non-invasive prenatal genetic tests. Public Understanding of Science 22(6), 730–744.Google Scholar
  8. Haga, S. B., Barry, W. T., Mills, R., Ginsburg, G. S., Svetkey, L., Sullivan, J., & Willard, H. F. (2013a). Public knowledge of and attitudes toward genetics and genetic testing. Genetic Testing and Molecular Biomarkers, 17(4), 327–335.CrossRefPubMedPubMedCentralGoogle Scholar
  9. Haga, S., Rosanbalm, K., Boles, L., Tindall, G., Livingston, T., & O’Daniel, J. (2013b). Promoting Public Awareness and Engagement in Genome Sciences. Journal of Genetic Counseling, 22(4), 508–516. doi: 10.1007/s10897–013–9577-3.
  10. Hall, M. J., Forman, A. D., Montgomery, S. V., Rainey, K. L., & Daly, M. B. (2015). Understanding patient and provider perceptions and expectations of genomic medicine. Journal of Surgical Oncology, 111(1), 9–17.CrossRefPubMedGoogle Scholar
  11. Hamilton, J. G., Hutson, S. P., Frohnmayer, A. E., Han, P. K., Peters, J. A., Carr, A. G., & Alter, B. P. (2015). Genetic Information-Seeking Behaviors and Knowledge among Family Members and Patients with Inherited Bone Marrow Failure Syndromes. Journal of Genetic Counseling, 24, 760.Google Scholar
  12. Harvey, E. K., Fogel, C. E., Peyrot, M., Christensen, K. D., Terry, S. F., & McInerney, J. D. (2007). Providers’ knowledge of genetics: A survey of 5915 individuals and families with genetic conditions. Genetics in Medicine, 9(5), 259–267.CrossRefPubMedGoogle Scholar
  13. Henneman, L., Timmermans, D. R., & Van der Wal, G. (2004). Public experiences, knowledge and expectations about medical genetics and the use of genetic information. Public Health Genomics, 7(1), 33–43.CrossRefGoogle Scholar
  14. Hollands, G. J., French, D. P., Griffin, S. J., Prevost, A. T., Sutton, S., King, S., & Marteau, T. M. (2016). The impact of communicating genetic risks of disease on risk-reducing health behaviour: systematic review with meta-analysis. BMJ, 352, i1102. doi: 10.1136/bmj.i1102.CrossRefPubMedPubMedCentralGoogle Scholar
  15. Kaphingst, K. A., McBride, C. M., Wade, C., Alford, S. H., Reid, R., Larson, E., et al. (2012). Patients’ understanding of and responses to multiplex genetic susceptibility test results. Genetics in Medicine, 14(7), 681–687.CrossRefPubMedPubMedCentralGoogle Scholar
  16. Kruger, J., & Dunning, D. (1999). Unskilled and unaware of it: How difficulties in recognizing one’s own incompetence lead to inflated self-assessments. Journal of Personality and Social Psychology, 77(6), 1121–1134. doi: 10.1037/0022–3514.77.6.1121.CrossRefPubMedGoogle Scholar
  17. Lanie, A. D., Jayaratne, T. E., Sheldon, J. P., Kardia, S. L., Anderson, E. S., Feldbaum, M., & Petty, E. M. (2004). Exploring the public understanding of basic genetic concepts. Journal of Genetic Counseling, 13(4), 305–320.CrossRefPubMedPubMedCentralGoogle Scholar
  18. Meilleur, K. G., & Littleton-Kearney, M. T. (2009). Interventions to improve patient education regarding multifactorial genetic conditions: a systematic review. American Journal of Medical Genetics Part A, 149(4), 819–830.CrossRefGoogle Scholar
  19. Molster, C., Charles, T., Samanek, A., & O’Leary, P. (2009). Australian study on public knowledge of human genetics and health. Public Health Genomics, 12(2), 84–91.CrossRefPubMedGoogle Scholar
  20. Ontario Ministry of Education, T. (2008). The Ontario Currisulum Grades 11 and 12: Science. Retrieved from http://www.edu.gov.on.ca/eng/curriculum/secondary/2009science11_12.pdf
  21. Rew, L., Mackert, M., & Bonevac, D. (2010). Cool, but is it credible? Adolescents’ and parents’ approaches to genetic testing. Western Journal of Nursing Research, 32(5), 610–627.CrossRefPubMedPubMedCentralGoogle Scholar
  22. Richards, M., & Ponder, M. (1996). Lay understanding of genetics: a test of a hypothesis. Journal of Medical Genetics, 33(12), 1032–1036.CrossRefPubMedPubMedCentralGoogle Scholar
  23. Saleh, M. T., & Barlow-Stewart, K. K. (2005). Genetics education in a culturally diverse population—lessons learnt, future directions. Annals of Human Biology, 32(2), 211–217.CrossRefPubMedGoogle Scholar
  24. Smerecnik, C. M., Mesters, I., de Vries, N. K., & de Vries, H. (2008). Educating the general public about multifactorial genetic disease: applying a theory-based framework to understand current public knowledge. Genetics in Medicine, 10(4), 251–258.CrossRefPubMedGoogle Scholar
  25. Statistics Canada, S. (2009). Canada at a Glance.Google Scholar
  26. Tabor, H. K., Brazg, T., Crouch, J., Namey, E. E., Fullerton, S. M., Beskow, L. M., & Wilfond, B. S. (2011). Parent perspectives on pediatric genetic research and implications for genotype-driven research recruitment. Journal of Empirical Research on Human Research Ethics, 6(4), 41–52.CrossRefPubMedPubMedCentralGoogle Scholar

Copyright information

© National Society of Genetic Counselors, Inc. 2016

Authors and Affiliations

  • Brittany Harding
    • 1
  • Rylan Egan
    • 2
  • Peter Kannu
    • 3
  • Jennifer J. MacKenzie
    • 4
  1. 1.Department of Health Sciences EducationQueen’s UniversityKingstonCanada
  2. 2.Queen’s UniversityKingstonCanada
  3. 3.The Hospital for Sick Children and University of TorontoTorontoCanada
  4. 4.Department of PediatricsQueen’s UniversityKingstonCanada

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