| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
SPECIAL ISSUE |
Division of Population Science, Family Risk Assessment Program, Fox Chase Cancer Center, Cheltenham, Pennsylvania 19012 [M. D., C. H. S., S. M., M. I., J. W. C., A. R., A. B., D. G.], and the Division of Medical Genetics, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104 [J. F.]
| Abstract |
|---|
|
|
|---|
Materials and Methods. A pilot study of genograms used as an adjunct to genetic counseling was performed at Fox Chase Cancer Centers Family Risk Assessment Program. A questionnaire was developed to elicit genograms from 38 women at risk for familial breast and/or ovarian cancer. After standard pedigree expansion, a series of questions was asked about the consultands relationship with other family members, communication patterns within the family, attitudes toward genetic testing, family reactions to cancer, roles individuals play in the family, and significant historical or anniversary events. Relationships were defined by the consultand as close, very close, conflictual, fused and conflictual, distant, or estranged.
Results. The majority of relationship types reported by 38 individuals was "very close" or "close." Eighty-one % reported having close/very close relationships with their spouses, 83% reported close/very close relationships with their mothers, and 70% reported close/very close relationships with their fathers. The degree of familial cohesion as depicted by the genogram correlates positively with scores obtained on the standardized Social Adjustment Scale Self-Report (P = 0.01).
Conclusions. Given the family-wide implications of genetic testing, the genogram may offer important guidance in family-targeted interventions.
| Introduction |
|---|
|
|
|---|
This study reports the use of the genogram as an adjunct to genetic counseling sessions for women who are at increased risk for breast and/or ovarian cancer and are interested in pursuing genetic testing. Additionally, this pilot attempts to validate information depicted on the genogram by having individuals take an independent survey, the SASSR.
| Materials and Methods |
|---|
|
|
|---|
The informed consent process for genetic testing includes an in-depth discussion of inheritance of mutated BRCA1 and BRCA2 genes, the spectrum of cancers identified in families carrying alterations in these genes, and the potential risks, benefits, and implications for receiving results from genetic testing. When test results are available, the consultand is invited to meet with a team consisting of a medical oncologist, genetic counselor, and social worker to discuss the test results. The medical oncologist reviews the types of cancers for which the consultand may be at risk, based on the genetic test results and the consultands medical and family history. Appropriate screening and prevention guidelines are also reviewed. The social worker helps explore, with the consultand, unexpected reactions to the results and reminds her of support resources identified at the predisclosure session. The genetic counselor reviews the benefits and limitations of the results, the inheritance of the gene mutation in the family (if a mutation had been identified in the family), and identifies at-risk relatives. All participants, regardless of genetic testing status, are encouraged to share their cancer risk information with their family. In a follow-up survey conducted after the receipt of genetic risk information, we have found that >75% of women share the information with their family members, but many report considerable emotional difficulty in doing so (5) . To date, however, there has been no standardized tool to help counselors address family issues critical to the communication of genetic information and to assist the sharing of information within the family.
Study Participation.
Thirty-eight women who are participants in the FRAP enrolled in the study, "Exploring the Use of the Genogram as an Aid in the Genetic Counseling Process." These women had completed participation in the HGP research at Fox Chase Cancer Center, "Coping with Genetic Risk for Breast and Ovarian Cancer." The goal of the HGP Coping Study was to assess how women cope with their risk of breast and ovarian cancer. This supplemental research expanded upon the Coping research by looking in more depth at the impact of the genetic counseling process on the consultand and her family. The nature and purpose of the genogram study were explained to every participant, and voluntary consent was obtained. The genogram session was conducted as an interview in a small meeting room just outside of the clinic area after the individual cancer risk counseling session. All sessions lasted between 30 and 60 min. A total of 38 genograms were constructed using a standardized questionnaire in interview style.
Questionnaire Development.
McGoldrick and Gerson (6)
standardized genogram construction by drawing lines between individuals to represent the nature of their relationships (Fig. 1)
. The conceptual framework of genogram construction and interpretation is rooted in Murray Bowens Family Systems Theory, which describes the association between family structure and family functioning and identifies the characteristics of family relationships that foster or erode support systems (6)
. According to this perspective, behavior patterns within families are often stable and transmissible over time. Therefore, the genogram is constructed to examine patterns of function and relationships from one generation to the next. Reactions to a family crisis, such as a diagnosis of cancer, are of particular importance in defining the strength and nature of relationships (6)
.
|
Genogram Construction.
A genogram uses symbols, like those in a pedigree, to represent individuals and biological relationships in a family. The template for the genogram is the computer-generated pedigree illustrating at least three generations of the consultands family. This pedigree forms a framework for adding family information including demographics, critical family events, and relationships between family members.
The genogram interview was conducted with 38 participants by either a genetic counseling student (n = 18), nurse (n = 2), a masters prepared social worker (n = 11), or health educator (n = 7).
The consultand was first asked to define her relationships with specified individuals as close, very close, conflictual, distant, estranged or cut off, and/or fused and conflictual. Definitions of these relationship types were explained to the consultand and based upon the response, a particular pattern of lines was drawn between her and other family members (Fig. 1)
. In an attempt to quantify and further define the reported relationship, the consultand was asked about the frequency and nature of communication between individuals and whether information was censored during communication. For example, two family members who constantly argue and cannot seem to agree on most issues would be defined as having a conflictual relationship. The consultand watched the interviewer draw lines between individuals on her family pedigree based on the relationship type reported by the consultand.
At the end of each genogram session, the consultand was asked to review the genogram to be certain that the relationships depicted reflected the information given. The consultand was permitted to amend the genogram, if desired.
SASSR.
After completion of the genogram session, participants completed the SASSR, which is an instrument for measuring social adjustment by patient self-report. The SASSR is a modification of the Structured and Scaled Interview to Assess Maladjustment developed by Gurland et al. (10
, 11)
. The self-report scale is simple to execute and requires no trained interviewer for administration.
Weissman and Bothwell (12) validated the use of the SASSR as an effective means of assessing social adjustment. With the use of the Pearson r correlation, a comparison of means between the interview scale and the self-report scale was completed. Correlations between the two were significant, ranging from 0.40 for the family unit subscale to 0.76 for the marital role subscale. The correlation for overall adjustment was 0.72, indicating excellent agreement (12) .
The SASSR contains 42 forced-choice questions that measure either instrumental or expressive role performance in six major areas of functioning: (a) role performance; (b) satisfaction with work; (c) social activities; (d) leisure activities; (e) relationships with extended family; and (f) family role as spouse, parent, or member of a family unit (12) . The SASSR takes 1520 min to complete, depending on reading ability and comprehension. For our purposes, scores on the social and leisure activities, extended family, and family roles subscales were totaled for a composite SASSR score.
Database.
A database of genogram relationships and SASSR scores was created on a Microsoft Excel spreadsheet. Each type of relationship reported by the consultand in reference to the consultand and another family member was entered. Frequencies of relationship types were calculated from the database. Linear regression and correlation analyses were used to model the dependency of the response variable SASSR with the predictor %C/VC (percent close/very close). Other categories, such as fused and conflictual, conflictual, distant, and estranged were eliminated from this analysis because the numbers of these types of relationships were very small.
| Results |
|---|
|
|
|---|
Table 1
compares the genogram subset with the larger study population enrolled in the HGP Coping Research. Participants shared similar demographics including age, educational level, and marital status. Breast/ovarian cancer risk was equivalent between the two groups based on the mean Gail Model Scores and family history information. These data illustrate that the genogram study population mirrors the larger at-risk population that presently participates in the Fox Chase Cancer Center FRAP. Of the 38 participants in this pilot study, two have received genetic testing results. One participant received results in the year after the study, whereas the other received results about 4 months before the genogram session.
|
|
|
|
Genogram Questionnaire.
A great deal of additional information was learned during the interview about the consultands relationships and communication patterns within the family. Seventy-four % of those interviewed reported that they have a relative who has expressed interest in genetic testing. Thirty-nine % reported that they would feel most comfortable discussing genetic testing with their sister, whereas 34% of those questioned felt they would be most comfortable talking to their spouses about genetic testing. Seventy-six % of our sample has actually donated blood for genetic testing research.
We explored at length whether cancer was a subject that could be discussed openly within the family. Eighty-three % of those questioned felt that their family was able to talk about cancer openly with the majority of family members, although an occasional family member might be excluded from these discussions. When asked whether family members agreed about the cancer diagnosis in the family, only 57% felt that all members of the family agreed about the implications of the cancer diagnosis within their family.
The consultand was then asked about her involvement in the physical care of the family member with cancer and how the caretaking decisions were made. Fifty-seven % of those interviewed had responsibility for the physical care of a family member with cancer. The majority of these felt that their proximity to the sick relative determined their involvement, although physical health, a nursing background, and position in sibship (oldest versus youngest) were key factors.
The immediacy of the cancer threat was explored by asking whether anyone in the family thought they would be next to develop cancer. Forty-five % responded affirmatively, with 21% of the consultands feeling that they would be the next person in their family to develop cancer.
Genogram Validity.
Finally, in an attempt to determine the validity of the genogram, the percentage of close and very close relationships reported was correlated with SASSR scores from the spare time, family of origin, and family unit subscales. The SASSR is a validated tool and an excellent measure of social adjustment (12)
. SASSR scores ranged from a minimum of 25 to a maximum of 45, with a mean score of 32.9. SASSR scores and % close/very close (%C/VC) relationships were found to be significantly correlated (r2=0.15; P = 0.014). That is, the higher the percentage of close and very close relationships represented on the genogram, the greater the social adjustment recorded on the SASSR subscales.
| Discussion |
|---|
|
|
|---|
In this study, genograms were constructed for 38 high-risk women to pilot the efficacy of this technique for assessing family relationships. Participants reported the majority of their familial relationships to be "close or very close." The degree of family cohesion reflected by the genogram correlated significantly with social adjustment as measured by the SASSR. This finding helps establish the validity of the questions used in genogram construction and indicates that the genogram is accurately capturing the consultands assessment of familial relationships, without biased interpretation by the interviewer.
There are several potential limitations to using the genogram in the context of research and counseling. The first of these is the subjective nature of the information recorded by the counselor. By standardizing both the content and the structure of the questions asked and adhering to defined symbols and nomenclature, we have attempted to convert qualitative data into a graphical representation of family dynamics that may be used in comparative and longitudinal research and counseling settings.
A second potential limitation is the issue of sample bias; this was a self-referred, highly motivated and educated population. The majority of the genograms collected in this pilot study illustrate relationships that are close and/or very close. Perhaps it is a reflection of the individuals own attitudes, behaviors, and status within the family network (14) that enable the individual to seek cancer risk counseling. It is also possible that our study population comes from families who have a history of chronic illness and have therefore developed, as a family, coping strategies for successfully dealing with chronic illness. Gerson (15) outlines the phases and stages through which families evolve, the challenges they deal with during each stage, and the impact a crisis, such as illness, can have on the family at each stage. Some stages of the family life cycle may involve closer interaction with other family members and represent a "contraction phase." It is possible that the majority of families in this study are in a similar family life cycle stage that involves a more interactive mode of behavior and/or coping among family members.
A third limitation of genogram construction is interviewer bias. Although information was collected using the standardized questionnaire, the interviewer was ultimately responsible for interpreting the consultands responses and diagrammatically completing the genogram. Although it is difficult to address interrater reliability in this small sample, 95% of the genogram sessions were conducted by only three interviewers. They followed the same format, using the genogram questionnaire as a foundation for exploring family relationships. All questions were asked in the same order, and the genogram was constructed based on the relationship questions in the survey. All participants were given the opportunity to amend the genogram upon its completion by the interviewer. Because of the structure and the unique personal nature of the information used to construct the genogram, it may lack the rigor of a more formal psychometric tool. However, the richness of the data provided and its potential usefulness in the individual counseling setting offset this limitation.
A final limitation is the possibility that the consultands answered questions about their familial relationships in a socially acceptable way. This is a problem inherent in most social research studies. However, our study population was already focused on family issues by virtue of their selection into a FRAP. We were careful in the informed consent process to emphasize that the information provided would be kept confidential and that there was no obligation to participate.
Genetic counseling is a communication process, helping individuals and their families understand all of the options available for coping with a genetic condition or undergoing genetic testing, to make decisions consonant with a familys goals, and to make the best possible adjustment to a genetic diagnosis or risk (3) . The drawing or construction of ones family history, in the form of a pedigree, is the most commonly used and one of the most powerful tools in medical genetics and genetic counseling (15, 16, 17) . It is the first and often best source of information for genetic risk analysis, making it a basis of treatment (3) . Its various symbols and markings provide a universal language that attempts to display a familys complex biological relationship as a graphic model (17) . It is drawn to establish the pattern of inheritance of traits, clarify a clinical genetic diagnosis, and assist in identifying at-risk individuals in a family (15 , 16) . Relied upon by molecular and medical geneticists, it is used to calculate recurrence risks and to do gene mapping via linkage analysis and other genetic family studies (18) .
In a similar fashion, the genogram can serve as a tool to members of a multidisciplinary clinical genetics team to provide a recorded memoir of a familys past and present attitudes and beliefs about genetic risk, as well as a record of the quality of relationships and dynamics within the family. For the consultand anticipating the receipt of genetic testing results, the genogram may be used in a therapeutic way to point out support networks or possible difficulties within the family. Although both the pedigree and the genogram are derived from interview data, the visual representation of that data can enhance the appreciation of familial patterns of both medical and social significance.
For genetic counseling to be truly helpful, it will be important to identify efficient and innovative methods to make genetic information available and relevant for the counselors and consultands (3) . We propose that the genogram may serve as an innovative adjunct to genetic counseling to meet the future demands and challenges facing the genetic counseling profession.
| Acknowledgments |
|---|
| Footnotes |
|---|
2 To whom requests for reprints should be addressed, at Fox Chase Cancer Center, Division of Population Science, 510 Township Line Road, Cheltenham, PA 19012. ![]()
3 The abbreviations used are: HGP, Human Genome Project; FRAP, Family Risk Assessment Program; SASSR, Social Adjustment Scale Self-Report. ![]()
Received 10/ 7/97; revised 12/21/98; accepted 1/ 4/99.
| References |
|---|
|
|
|---|
This article has been cited by other articles:
![]() |
M. M. Eberl, A. Y. Sunga, C. D. Farrell, and M. C. Mahoney Patients with a Family History of Cancer: Identification and Management J Am Board Fam Med, May 1, 2005; 18(3): 211 - 217. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. M. Miller, D. J. Bowen, M. K. Campbell, M. A. Diefenbach, E. R. Gritz, P. B. Jacobsen, M. Stefanek, C. Y. Fang, D. Lazovich, K. A. Sherman, et al. Current Research Promises and Challenges in Behavioral Oncology: Report from the American Society of Preventive Oncology Annual Meeting, 2002 Cancer Epidemiol. Biomarkers Prev., February 1, 2004; 13(2): 171 - 180. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. J. Bowen, A. F. Patenaude, and S. W. Vernon Psychosocial Issues in Cancer Genetics: From the Laboratory to the Public Cancer Epidemiol. Biomarkers Prev., April 1, 1999; 8(4): 326-A - 328. [Full Text] [PDF] |
||||
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Cancer Research | Clinical Cancer Research |
| Cancer Epidemiology Biomarkers & Prevention | Molecular Cancer Therapeutics |
| Molecular Cancer Research | Cancer Prevention Research |
| Cancer Prevention Journals Portal | Cancer Reviews Online |
| Annual Meeting Education Book | Cell Growth & Differentiation |