A systematic review of theory-informed strategies used in interventions fostering family genetic risk communication

A scoping review of parents' disclosure of BRCA1/2 genetic alteration test results to underage children

BACKGROUND

Individuals with BRCA1/2 mutations have a notably higher than average lifetime risk of developing cancer as adults. Some parents with BRCA1/2 mutations wish to share this information with their children, yet they struggle to know how, when, and what information to share.

OBJECTIVE

The objective of this review was to identify what communication strategies/interventions exist for parents communicating their BRCA1/2 status to their minor children, and what communication interventions do healthcare professionals use to support parents' disclosure process.

METHODS

Scoping review on six databases search for studies with parents and/or healthcare professionals' interventions on supporting communication from parents to children. The review aligned PRISMA guidelines for scoping reviews and used the PAGER recommendations to guide charting and reporting.

RESULTS

22 articles published from 2001 to 2020 were included. Multiple facilitators/motivators of disclosure, how and where parents disclosed, reactions to disclosure were identified. Also, there were no healthcare professionals' interventions in the disclosure process found.

CONCLUSIONS

The review summarizes research on parents' disclosure of their BRCA1/2 status to their underage children and demonstrates a paucity of communication interventions for guiding parents in this difficult process. Parents experience many obstacles communicating the results to their children.

PRACTICE IMPLICATIONS

These findings equip healthcare professionals in their efforts to develop and test interventions which support the communication of genetic risk information. Furthermore, it is evident there is a need for more research to understand how the disclosure process occurs in the families.

What Do Breast Cancer Previvors Tell Us About Their Stories? To Know or Not to Know?

OBJECTIVES

This study aimed to explore the (1) experiences of breast cancer previvor women during genetic testing; (2) perceptions of the impact of genetic testing on their personal, social, family, and professional lives; and (3) views on breast cancer prevention and follow-up processes. This study focused on the risk of breast cancer in persons with BRCA mutations.

METHODS

Data were collected through individual in-depth semistructured interviews. The data were analyzed using the MAXQDA program based on the method suggested by Graneheim and Lundman.

RESULTS

This study was conducted in Istanbul, Turkey, and included 17 participants. Five themes emerged from the data analysis-Acquaintance with BRCA, Living with BRCA, Managing the Legacy, Maternalism, and We Are Here, including a total of 12 categories.

CONCLUSION

The previvors had negative experiences during genetic testing, mainly owing to a lack of information, stigma, and women's roles in society. A structured and individualized process for genetic counseling was identified as the main requirement.

IMPLICATIONS FOR NURSING PRACTICE

National and international policies on breast cancer previvors should be developed to prevent breast cancer and reduce mortality. Adopting a multidisciplinary approach during genetic counseling will favorably contribute to previvors' medical and psychosocial well-being. Follow-up programs before and after genetic testing should be created. Society's cultural and genetic literacy levels should be evaluated, and activities should be planned to raise social awareness.

Modes of responsibility in disclosing cancer genetic test results to relatives: An analysis of Swiss and Korean narrative data

OBJECTIVE

We examined how responsibility (the "duty to inform relatives about genetic testing results") is understood and enacted among Swiss and Korean women carrying BRCA1 or BRCA2 pathogenic variants.

METHODS

In-depth interviews and/or focus groups with 46 Swiss and 22 Korean carriers were conducted, using an identical interview guide. Data were analyzed inductively and translated into English for cross-country comparisons.

RESULTS

We identified five modes of responsibility in both samples: Persuader, Enabler, Relayer, Delayer, and Decliner. The Enabler and Relayer modes were the most common in both countries. They followed the rational imperative of health and norms of competence and self-determination, respectively. The Relayer mode transmitted information without trying to influence relatives' decisions. The Delayer and Decliner modes withheld information, deeming it the best way to safeguard the family during that specific moment of its trajectory. Responsibility to disclose testing results was influenced by culturally diverging conceptions of the family unit and socio-contextual norms.

CONCLUSION

Responsibility primarily reflects the imperative of health prevention; findings demonstrate various interpretations, including the sense of family caring achieved through controlled disclosure of genetic information.

PRACTICE IMPLICATIONS

Findings offer healthcare providers socio-anthropological insights to assist probands navigate the disclosure of genetic information within their families.

TRIAL REGISTRATION NUMBER

NCT04214210 (registered Nov 2, 2020), KCT 0005643 (registered Nov 23, 2020).

Applying the framework for developing and evaluating complex interventions to increase family communication about hereditary cancer

Objective

Evaluate an intervention to increase family communication (FC) of positive hereditary cancer test results using the Framework for Developing and Evaluating Complex Interventions (FDECI).

Methods

We developed 'programme theory' during the FDECI development phase by aligning intervention components with behavior change techniques (BCTs) and theoretical factors expected to improve FC. During the feasibility phase, we obtained feedback from 12 stakeholder interviews.

Results

Intervention components aligned with a total of 14 unique BCTs for which prior evidence links the BCT to theoretical factors that influence behavior change. Constructive stakeholder feedback included: more information desired, rewording to support autonomy by highlighting options, and improvements to navigation, visuals, and audio. Positive comments included: comprehensiveness of materials, modeling of conversations, and usefulness of the materials for helping a person prepare to share positive test results.

Conclusion

The first FDECI phases were helpful for improving the intervention and planning our ongoing effectiveness and future implementation phases.

Innovation

Our application of the FDECI is novel, including plans to test our 'programme theory' using coincidence analysis (CNA) to determine who accesses which intervention materials, how utilizing certain materials impact the aligned theoretical factors, and whether these in turn make a difference in the behavioral outcome.

Developing and assessing a kin keeping scale with application to identifying central influencers in African American family networks

Promoting family communication about inherited disease risk is an arena in which family systems theory is highly relevant. One family systems' construct that can support promotion of family communication regarding inherited disease risk is the notion of "kin keeping." However, kin keeping and whether it might be capitalized on to encourage family communication about inherited risk has been understudied. The goal of this report was to propose a broadened conceptualization of kin keeping that distinguishes between a structural functional perspective (role conceptualization) and transitional behaviors (skill conceptualization), and to develop and evaluate a scale that would enable this assertion to be tested among a sample of African American community health workers. We developed a scale using four steps: item development using concept analysis and content validity, scale development among a national sample (n = 312), scale evaluation using exploratory factor analysis (n = 52), and scale reduction. We then posed suppositions of associations that would indicate whether the developed kin keeping measure was assessing a specific family role or set of behaviors. Our results included the development of the first quantitative measure of kin keeping (9- and 15-item scales). Model fit for 9-item scale (CFI = 0.97, AFGI = 0.89, RMSEA = 0.09, SMRM = 0.06) and model fit for 15-item scale (CFI = 0.97, AFGI = 0.89, RMSEA = 0.06, SMRM = 0.05). These findings allow us to move toward more rigorous research about the role of kin keeping on information sharing and health decision making. Results also suggest that, contrary to the historical structural functional conceptualization of kin keeping as a role, kin keeping might also be conceptualized as a behavior or set of modifiable behaviors. Ultimately, the kin keeping scale could be used to operationalize kin keeping in various theoretical models and frameworks, guide intervention development to encourage or train for kin keeping behaviors, and test assumptions of whether families vary in the density of kin keeping.

Interventions to support patients with sharing genetic test results with at-risk relatives: a synthesis without meta-analysis (SWiM)

Whilst the finding of heritable susceptibility to disease was once relatively rare, mainstreaming of genetic testing has resulted in a steady increase. Patients are often encouraged to share their genetic test results with relevant relatives, but relatives may not receive this information, leaving them without knowledge of their own risk. Therefore, strategies to help communicate such information are important. This review aimed to explore the efficacy of existing interventions to improve the sharing of genetic test results. A synthesis without meta-analysis design was used. A systematic search of Medline, CINAHL, PsychINFO, and AMED was conducted, and five studies were identified worldwide. Data were extracted for each study regarding study aim, participant characteristics, condition, intervention details, comparison, study duration, outcome measures, theory and behaviour change techniques used. Limited efficacy and application of theory was found. Knowledge, motivation and self-efficacy were not increased in any intervention. No gender differences in communication behaviour were encountered in interventions that recruited men and women. Two studies reported an evaluation of acceptability, which showed that the interventions were well received by patients and health professionals. No study reported the involvement of the target population in any phase of intervention development. Given the lack of health psychology-informed interventions in this area of clinical genetics, we recommend genetic health professionals, health psychologists and patients collaborate on all stages of future interventions that involve the cascading of genetic health information within families. We also provide guidance regarding use of theory and intervention elements for future intervention development.

Your Family Connects: A Theory-Based Intervention to Encourage Communication about Possible Inherited Cancer Risk among Ovarian Cancer Survivors and Close Relatives

INTRODUCTION

Encouraging family communication about possible genetic risk has become among the most important avenues for achieving the full potential of genomic discovery for primary and secondary prevention. Yet, effective family-wide risk communication (i.e., conveying genetic risk status and its meaning for other family members) remains a critical gap in the field. We aim to describe the iterative process of developing a scalable population-based communication outreach intervention, Your Family Connects, to reach ovarian cancer survivors and close relatives to communicate the potential for inherited risk and to consider genetic counseling.

METHODS

Relational-level theories (e.g., interdependence theory) suggest that interventions to promote family cancer risk communication will be most effective if they consider the qualities of specific relationships and activate motives to preserve the relationship. Informed by these theories, we collaborated with 14 citizen scientists (survivors of ovarian cancer or relatives) and collected 261 surveys and 39 structured interviews over 12 weeks of citizen science activities in 2020.

RESULTS

The citizen science findings and consideration of relational-level theories informed the content and implementation of Your Family Connects (www.yourfamilyconnects.org). CS results showed survivors favor personal contact with close relatives, but relatives were open to alternative contact methods, such as through health professionals. Recognizing the need for varied approaches based on relationship dynamics, we implemented a relative contact menu to enable survivors identify at-risk relatives and provide multiple contact options (i.e., survivor contact, health professional contact, and delayed contact). In line with relational autonomy principles, we included pros and cons for each option, assisting survivors in choosing suitable contact methods for each relative.

DISCUSSION

Our developed intervention represents a novel application of relational-level theories and partnership with citizen scientists to expand genetic services reach to increase the likelihood for fair distribution of cancer genomic advances. The Your Family Connects intervention as part of a randomized trial in collaboration with the Georgia Cancer Registry compared with standard outreach.

An exploration of knowledge, risk perceptions, and communication in a family with multiple genetic risks for Parkinson's disease

Genomic testing increasingly challenges health care providers and patients to understand, share, and use information. The provision of polygenic risks is anticipated to complicate comprehension, communication, and risk perception further. This manuscript aims to illuminate the challenges confronting families with multiple genetic risks for Parkinson's disease. Identifying and planning for such issues may prove valuable to family members now and in the future, should neuroprotective or genotype-specific therapies become available. We present qualitative data from interviews with a multi-generational family carrying pathogenic variants in the glucocerebrosidase (GBA1) and leucine-rich repeat kinase 2 (LRRK2) genes which are associated with an increased risk for developing Parkinson's disease (PD). The family includes two brothers (heterozygous for LRRK2 p.G2019S and homozygous for GBA1 p.N409S) and their four descendants. The brothers were concordant for GD and discordant for PD. Genetic counseling and testing were provided to four of the six participants. Two years later, semi-structured interviews were conducted with the initial participants (n = 4) and two additional first-degree relatives. Interviews were transcribed and thematically analyzed, providing the basis for this report. Illuminated topics include the perceived risk of developing PD, recall of genetic information, and family communication. With the expanding use of exome and genome sequencing, we anticipate that genetic counselors will increasingly face the challenges demonstrated by this case involving multiple genetic risks for PD, limited data to clarify risk, and the inherent variability of family communication, genetic knowledge, and risk perception. This clinical case report provides a compelling narrative demonstrating the need for additional research exploring these multifaceted topics relevant to both families facing these challenges and providers striving to assist, support and guide their journey.

The Communication Chain of Genetic Risk: Analyses of Narrative Data Exploring Proband–Provider and Proband–Family Communication in Hereditary Breast and Ovarian Cancer

Low uptake of genetic services among members of families with hereditary breast and ovarian cancer (HBOC) suggests limitations of proband-mediated communication of genetic risk. This study explored how genetic information proceeds from healthcare providers to probands and from probands to relatives, from the probands’ perspectives. Using a grounded-theory approach, we analyzed narrative data collected with individual interviews and focus groups from a sample of 48 women identified as carriers of HBOC-associated pathogenic variants from three linguistic regions of Switzerland. The findings describe the “communication chain”, confirming the difficulties of proband-mediated communication. Provider–proband communication is impacted by a three-level complexity in the way information about family communication is approached by providers, received by probands, and followed-up by the healthcare system. Probands’ decisions regarding disclosure of genetic risk are governed by dynamic and often contradictory logics of action, interconnected with individual and family characteristics, eventually compelling probands to engage in an arbitrating process. The findings highlight the relevance of probands’ involvement in the communication of genetic risk to relatives, suggesting the need to support them in navigating the complexity of family communication rather than replacing them in this process. Concrete actions at the clinical and health system levels are needed to improve proband-mediated communication.

Perceptions and care Recommendations from Previvors: Qualitative analysis of female BRCA1/2 mutation Carriers' experience with genetic testing and counseling

Introduction

It is estimated that 12.5% of women will be diagnosed with breast cancer and 1.10% with ovarian cancer during their lifetime. Although less common, women with these mutations have a 11-72% increased risk of breast/ovarian cancers and are hereditary. Genetic testing/counseling presents the opportunity to identify carriers of BRCA1/2 genetic mutations before a cancer diagnosis.

Methods

Thirty-four BRCA1/2-positive women (with and without histories of breast/ovarian cancers) were recruited through online national support groups to gain a better understanding of their genetic testing/counseling perceptions and experiences. After confirming eligibility, they were invited to participate in either a telephone or webcam interview. Interview transcripts were analyzed using qualitative thematic text analysis and descriptive coding techniques.

Results

Six major themes emerged, capturing the perceptions and experiences of genetic testing/counseling for these women: 1) Emotional Reactions to Results and Genetic Counseling, 2) Future Recommendations, 3) Family Solidarity and Support, 4) Experiences with the Healthcare System, 5) Preventive Concerns and Decisions, and 6) Sources Affecting Perceived Risk. Two subthemes also emerged within the first theme, which are termed "Pre-vivor," and "Testing Intuition."

Conclusions

Participants indicated that genetic testing/counseling improvements would be helpful for women in this population surrounding quality care, including sensitivity training for healthcare professionals involved in testing/counseling, additional educational resources, and increased emotional and financial support. Although these recommendations may be beneficial, more widespread research with greater generalizability to disparate groups may be necessary prior to implementation.