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Journal of Nursing Scholarship Genetic Testing, Genetic Information, and the Role of Maternal-Child Health Nurses in Israel
Genetic Testing, Genetic Information, and the Role of Maternal-Child Health Nurses in Israel
Sivia Barnoy, Dorit Appel, Chava Peretz, Hana Meiraz, Mally EhrenfeldQuanto Você gostou deste livro?
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Volume:
38
Ano:
2006
Idioma:
english
Páginas:
6
DOI:
10.1111/j.1547-5069.2006.00106.x
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Clinical Scholarship Genetic Testing, Genetic Information, and the Role of Maternal-Child Health Nurses in Israel Sivia Barnoy, Dorit Appel, Chava Peretz, Hana Meiraz, Mally Ehrenfeld Purpose: To examine the rate of genetic testing, the characteristics of those who had these tests, and to examine the public’s openness to the possibility of expanding nurses’ roles in maternal-child health (MCH) clinics to include providing genetic information. Design: The study was conducted in nine MCH clinics in the central district of Israel. All women attending the clinics during 1 week were requested to complete the questionnaire. The sample consisted of 361 participants. Findings: A high rate of genetic testing (80.4%) was shown. Higher education, being secular, and native-born Israeli predicted testing performance. Half of the tested participants reported that they did not understand the test results and were interested in receiving explanations regarding these results. Forty-four percent of respondents were interested in receiving genetic information from an MCH nurse. Conclusions: A high rate of genetic testing performance was reported. The public reported lack of information regarding genetic tests and their results. An appropriate setting for providing this information is the maternal-child health clinics. C 2006 SIGMA THETA TAU INTERNATIONAL. JOURNAL OF NURSING SCHOLARSHIP, 2006; 38:3, 219-224. [Key words: maternal-child health (MCH) nurse, genetic information, genetic testing] * T he postgenomic era has led to the possibility of identifying people at risk for genetic diseases. As a result, many genetic tests are offered to the public, leading to public interest in genetic information. The taking of these tests is influenced by knowledge about genetic diseases (Henneman et al., 2001). Nurses provide information regarding genetic disease risk, testing, and treatment (Greco, 2003), and recommendations include that nurses advise their patients about genetic screening and its implications, and identify people w; ho have or are at risk of having a genetic disease (Lessick & Anderson, 2000). To incorporate genetics into practice, nurses and nursing students require education (Jenkins, Prows, Dimond, Monsen, & Williams, 2001) and training in genetics (Jenkins et al., 2001; Lashley, 2000). Patients need information to help them make informed decisions. A study of 50 women awaiting abdominal surgery in a community medical center showed that structured education by nurses increased care satisfaction (Lookinland & Pool, 1998). When asked to describe quality care, patients in waiting rooms of clinics responded that teaching by nurses was a component of quality care (Oermann, 1999). Background In Israel, medical services are public and are provided in the framework of the National Health Law which states * * that medical services will be provided for all citizens (“Basket of Medical Services;” The National Health Insurance Law, 1994). Community health services are traditionally divided into curative and preventive care, which are provided by three large health maintenance organizations (HMOs). The Maternal Child Health (MCH) Clinics, found throughout Israel, provide preventive care for pregnant women and infants. These clinics have won international recognition from the World Health Organization (WHO, 1978). Approximately 96% of infants receive preventive care at these clinics, which charge a minimal service fee (Palti, Gofin, & Adler, 2004). The main caregivers are public health nurses. Their role is focused on pre- and postnatal care, which includes growth and development follow-up, vaccinations, health education, and health promotion programs. Because MCH nurses come in contact with women at the time when Sivia Barnoy, RN, PhD, Lecturer, Department of Nursing; Dorit Appel, RN, MA, Teacher; Chava Peretz, PhD, Teacher, all at Department of Nursing, School of Health Professions, Tel-Aviv University, Israel. Hana Meiraz, RN, MA, Chief Nurse of Public Health Services, Public Health Services, Ministry of Health, Jerusalem, Israel; Mally Ehrenfeld, RN, PhD, Senior Lecturer, Department of Nursing, School of Health Professions, Tel-Aviv University, Israel. Correspondence to Dr. Barnoy, Department of Nursing, School of Health Professions, Tel-Aviv University, Israel. E-mail: sivia@post.tau.ac.il Accepted for publication April 21, 2006. Journal of Nursing Scholarship Third Quarter 2006 219 Genetics and the MCH Nurse genetic testing is considered, a recent suggestion is that nurses provide genetic information. An aim of the present study was to examine the attitudes of women toward this idea. The “Basket of Medical Services” provided by the HMO indicates which genetic tests are paid for by the state. These include amniocentesis for women 35 years or older during the first trimester of pregnancy or when the risk for Down syndrome exceeds 1:380, carrier detection for TaySachs for all Jews, and Thalassemia for high-risk groups. The Triple Test (TT) costs about $10 (US). Amniocentesis, nuchal translucency (NT), and carrier detection for recessive diseases are not included and can be undertaken privately for approximately $450, $150, and $100 per test, respectively. Screening and carrier detection tests are frequently done before or during pregnancy, but other tests are pregnancy-related. During prenatal visits, women are referred for genetic testing. Nearly all are referred for tests covered by the state or HMO, but no clear policy exists for private tests, and referral depends on the physician or nurse who performs the follow-up (nurses can refer women for Tay Sachs and TT, recommend taking screening tests and NT and refer to genetic clinics by criteria for amniocentesis). This variety shows lack of a clear policy regarding genetic testing, and often women are given a choice of whether to take these tests without adequate information (Sher, Roman-Zelekha, Green, & Shohat, 2003). The rate of genetic testing performance has increased. Recently, 60.9% of women in Israel reported having had the triple test, 50.8% of women over 35 years of age had amniocentesis, 63.3% were tested for Tay-Sachs, and 24.3% for fragile X. Higher income, having fewer children, and being secular are factors that influence testing performance (Sher et al., 2003). Usually, normal test results are sent through the mail. Triple test results are presented as the risk of having a baby with Down syndrome. The referrer is informed when the results show an elevated risk. For abnormal amniocentesis results, the couple is called in for genetic counseling. When a person is found to be a carrier of a genetic disease, the partner is called in for testing. Genetic counseling takes place only when both partners are carriers. This present situation is confusing. Generally, lay people cannot fully comprehend the implications of the results and thus require additional information. This confusion, together with the reported shortage of genetic counselors (Emery & Hayflick, 2001) and the increasing number of genetic tests offered to the public, indicates nurses should become more involved in providing genetic information. With relevant education, nurses can become proficient enough in genetics to qualify them to provide genetic information. Because MCH clinics are available and accessible to all, MCH nurses can be immediate sources of answers to questions, refer patients, and provide genetic information. The aim of the present study was to elucidate genetic testing performance rates and how patients were referred 220 Third Quarter 2006 Journal of Nursing Scholarship for the tests, to identify the characteristics of those who undertook genetic testing and their perceived understanding of testing reasons and results. The research goal was to assess whether the MCH clinics and nurses are perceived as appropriate sources for providing genetic information. The results may help in determining policy about nursing roles in genetics and forming guidelines for referral for genetic testing. Methods Sample According to the Ministry of Health, Israel is geographically divided into six districts and 16 subdistricts. The country has 480 MCH clinics run by the Ministry of Health. In the present study, a systematic sampling of one subdistrict was carried out and seven clinics were sampled. After sampling, adjustments were made to include two additional clinics that serve subpopulations with respect to socioeconomic level, religion, and immigration, as well as the location of the clinics. These adjustments were made after consultation with the head subdistrict nurse. The sample consisted of 361 women who were seen at MCH clinics in the central district of Israel (response rate 60%). Respondents ranged in age from 22 to 50 years (M=30.9, SD=4.67), with 96% married and 4% single mothers. Respondents were primarily secular (60.3%), with 39.7% traditional or religious. Educational levels included high school graduate (46.5%), BA degree (23.8%), and higher (29.7%). Work status varied as full time (48.5%), part time (16.6%), or unemployed (33.4%). Most were nativeborn (70%), and the rest were Russian immigrants (30%). Instrument A questionnaire was developed by the researchers to assess the need for genetic information and whether nurses were perceived as capable of providing this information. The items were selected to represent domains in the proposed role of MCH nurses in genetics. The items regarding perceived understanding of genetic testing were selected after interviews with five women who received genetic testing. The questionnaire was validated by 17 public health nurses working in MCH clinics who commented on the relevance of the questions. Because Russian immigrants constitute about 20% of the Israeli population, the questionnaire was also translated into Russian by the method of Brislin (1980). A pilot study with 52 participants who attended one clinic during a specific week was conducted, and the questionnaire was modified according to respondents’ remarks. The questionnaire consisted of five items (Table 1) related to interest in receiving genetic information. Response to each item was on a 5-point scale, ranging from “Not at all” (1) to “To a very large extent” (5). Reliability of the scale was α=.85. Also included were questions about performance of genetic testing during the last pregnancy, how participants were referred, and their perceived understanding of the tests. Genetics and the MCH Nurse Table 1. Extent of Interest in Genetic Information at the MCH Clinics Among Participants Who Had Genetic Testing (N=291) Item % Interest in explanation of genetic testing results Interest in genetic information in general at the MCH clinics Interest in receiving information regarding genetic testing at the MCH clinics (prior testing) Interest in genetic counseling from an expert in the MCH clinics Interest in receiving genetic information from nurses in the MHC clinics 63.0 49.2 48.9 48.3 43.6 Procedure Before the survey was conducted, one member of the research team met with the head nurse of each clinic and explained the survey and procedures. Questionnaires were distributed by the head nurse to all patients fluent in Hebrew or Russian and attending the clinics during the survey week. All participants signed informed consent forms. and being an immigrant were the main factors that influenced decisions to undergo genetic testing. Religiosity was determined by a questionnaire item in which participants were asked to rank religiosity level. For analysis we created two groups: (a) secular and (b) religious and traditional. Higher education (p=.001), native-born Israeli (p=.003) and secular (p=.004) were related to higher rates of genetic testing. The characteristics were also analyzed for each test separately (Table 2). Undergoing the Triple Test (TT) significantly correlated with age, education, and immigrant vs. native-born status (p=.019, .04, and .0001, respectively), i.e., participants who were younger, more educated, and native-born were more inclined to be tested for TT. Age and religiosity correlated to nuchal translucency (NT) testing, i.e., being young and secular were predictive of testing for NT (p=.004 and .05, respectively). No correlation for Tay Sachs was found. Screening tests were related to education and immigrant status, i.e., having higher education and being native-born (p=.000 and .000 respectively). Older age and higher education were predictive of undergoing amniocentesis (p=.000 and .001, respectively). Results Receiving Genetic Testing Of the respondents, 291 (80.4%) had at least one genetic test during their last pregnancy. Genetic tests and frequency of testing are shown in Figure 1. A high rate of genetic testing was found for all tests. Most women were referred by their physicians (67.8%), public health nurses referred 15.5%, and 16.6% requested genetic testing themselves. Characteristics of Participants Who Had Genetic Testing A comparison of the characteristics of the women who had genetic testing was carried out. Education, religiosity, Perceived Understanding of Genetic Testing Overall, 50.5% of participants who had genetic testing reported that the results were unclear. Participants were asked to specify what was unclear. About 25% did not understand the meaning of test results and the implications for immediate health status. Almost 20% reported that they did not understand the future implications of the results, and approximately 11% said the reason for testing was unclear. The results are shown in Figure 2 (all items could be chosen by each participant). Figure 1. Percentage of participants who had each genetic test (N=361). Journal of Nursing Scholarship Third Quarter 2006 221 Genetics and the MCH Nurse Table 2. Logistic Regression of Comparison Between Participants Who Had Genetic Testing by Each Test (n=291) Triple test OR a Age<35 >35 Religiosity no yes Education 12y 12–15y 15y+ Immigrant yes no 1 .38 .67 1 1 1.11 2.35 .21 1 95%CI b Nuchal translucency p OR 1 .35 .56 1 1 .49–2.49 .80 .82 1.04–5.32 .04 .82 .09–.47 .000 1.00 1 .17–.85 .019 .34–1.32 .25 95%CI p .16–.72 .004 .30–1.03 .050 .42–2.0 .91 .54–2.18 1.08 .44–2.90 .981 Tay Sachs OR 1 .65 .76 1 1 11.67 1.66 1.45 1 95%CI Screening tests p OR 1 .85 .75 1 1 .83–3.37 .15 12.53 .90–3.06 .10 3.60 .69–3.05 .32 .26 1 .32–1.34 .25 .43–1.33 .33 Amniocentesis 95%CI p .40–1.83 .41–1.36 .69 .34 1.21–5.30 1.90–6.87 .11–.61 .014 .000 .002 OR 1 16.39 .55 1 1 2.26 3.72 .50 1 95%CI p 6.41–41.91 .0000 .27–1.12 .10 .94–5.42 1.74–7.95 .22–127 .003 .001 .146 Note. a Odds ratio; b confidence interval. Interest in Receiving Genetic Information at MCH Clinics Of the respondents who had genetic testing, one-half were interested in receiving genetic information at the clinics, and about two-thirds were interested in receiving explanations regarding test results. About one-half indicated they would have been interested in receiving information about genetic testing (before to testing) at the MCH clinics (see Table 1). Variables associated with interest in receiving genetic information at the clinics were analyzed. Religiosity was associated with more interest in receiving genetic information at the clinics (p=.002). Religious respondents with higher education were more interested in explanations regarding the test results (p=.05). Immigrants were more interested in receiving genetic information about genetic testing (p=.041). Higher education and being religious were also correlated with more interest in information regarding genetic testing (p=.033). Source of Genetic Information Approximately 44% of respondents who had genetic testing were interested in receiving genetic information from the nurses at the clinics, and almost half reported they would like to receive genetic counseling from an expert at the MCH clinics (participants could answer both; Table 1). Being religious correlated with interest in receiving genetic information from nurses at the clinics (p=.05) and higher education correlated with more interest in genetic counseling by an expert (p=.011). Discussion Recently, the idea of qualifying some nurses who work at MCH clinics as genetic experts has been suggested. The present study was done to determine the rate of genetic testing, the perceived need for genetic information, and the Figure 2. Percentage of participants who did not understand aspects of genetic testing. 222 Third Quarter 2006 Journal of Nursing Scholarship Genetics and the MCH Nurse readiness to receive this information at the clinics, and more specifically, from the nurses. In the present study, the rate of genetic testing was high (80.4%). Israeli society has been described as one that is characterized by rapid adoption of new technologies (Gross & Ravitsky, 2003). A high number of nonrecommended amniocentesis performances (i.e., for Down syndrome, risk lower than 1:380) has been reported. According to geneticists, this rate could stem from social norms in Israel with special emphasis on child health (Shoat et al., 2003). Most women were referred for testing by physicians, and MCH clinic nurses referred only a small proportion. Nonreferral was the main reason for not performing TaySachs and fragile X screening (Sher et al., 2003), indicating the need to raise the awareness of nurses in Israel about the availability of genetic testing and of the importance of referring women for testing. However, genetic testing is often performed just because it is offered (Hartley et al., 1997). Referral guidelines for genetic testing are needed. The present study showed that native-born, secular women with a higher education undertook more genetic testing than did other women. Other studies have shown that personal characteristics, such as higher education and socioeconomic status, were predictive of genetic testing (Halliday, Lumley, & Watson, 1995; Khoshnood, Blondel, De Vigan, & Breart, 2003). Higher education and socioeconomic status probably expose women to more health information, resulting in more concern about healthy behavior. The influence of religiosity was not surprising, because religiously observant women are less inclined to terminate pregnancy. Together with the reports that in Israel the purpose of performing genetic testing is to identify abnormal fetuses and to avoid having a disabled child (Blumberg, 1994), religious women in Israel would be expected to have less genetic testing (Sher et al., 2003). However, the present study showed that these participants were interested in receiving genetic information and explanation at the clinics. These conflicting results may be explained by the possible higher uncertainty experienced because of reduced genetic testing. In some cases, knowledge can help reduce uncertainty (Armon, McPermont, & Schiffer, 1996). Another possibility is that this group lacks informational resources and, therefore, perceives MCH clinics as places to receive the relevant information without stigmatization. Another important finding concerned new immigrants, who had less testing. This group has not been considered in previous studies. In the present study, immigrants from Russia had less presymptomatic screening tests for fragile X, cystic fibrosis, and Gausher’s disease, which cost about $100 each. Their socioeconomic status likely affected their decisions about testing or they may have been unaware of the availability of the tests. Lower performance of genetic testing by religious women and new immigrants showed the importance of providing genetic information in an accessible environment. Furthermore, the results indicated the need to identify other vulnerable sectors that could benefit from genetic testing. One sector is the Israeli-Arab population, characterized by high rates of consanguinity, which is a risk factor for genetic diseases. These sectors (orthodox, new immigrants, and Israeli-Arabs) are target groups for MCH clinic nurses to provide genetic information. This focus is supported by reports that minority populations have limited knowledge about genetic testing and are interested in receiving this information. Minority populations are found in almost every country and are known to be underserved by the health systems (Catz et al., 2005). No significant correlations were found for Tay Sachs testing. Because all pregnant women are referred for this test, and all health professionals who carry out pregnancy followup are also aware of the test, nearly all pregnant women are tested during their first pregnancy. This is a good example for assimilation of genetic screening tests into the health services that have led to the extermination of the disease in Israel. Older women were less inclined to have the triple test, but were more likely to have amniocentesis, which is financed by the state for all pregnant women over age 35 years. This trend is probably based on the perception of most people that the triple test is a screening test for Down syndrome only. These results show the need to educate women about the importance of the triple test in detecting other fetal conditions undetected by amniocentesis (e.g., ichthyosis). Approximately one-half of the women who received genetic testing reported that they did not understand the results, and slightly less than one-half were interested in receiving genetic information at the MCH clinics. This finding indicates a lack of genetic knowledge as perceived by the women and to the need for an accessible source of information to fill this gap. Although posed as a hypothetical service, 44% of respondents found the MCH clinic nurses to be the appropriate people to provide this information. This finding was interpreted as an expression of trust and openness to the idea of expanding the role of MCH nurses. Recently, the genetic nurse role has evolved worldwide, with different models (Anderson, Monsen, Prows, Tinley, & Jenkins, 2000; Skirton, 1998). To date, a genetic nursing role has not been adopted in Israel. However, one of the HMOs has introduced a new role for nurses in genetics. These nurses are trained to advise the public about appropriate genetic screening tests recommended according to ethnic origin. These nurses provide information only about carrier detection tests before testing, so the public still remains without a place to receive general information about other genetic testing and results. Conclusions The present study showed a high rate of genetic testing, but test results were misunderstood by half of the respondents. The characteristics of people that are more inclined Journal of Nursing Scholarship Third Quarter 2006 223 Genetics and the MCH Nurse to take genetic testing were identified. The findings indicate target populations that need further attention and could benefit from genetic information. Interest in receiving genetic information at the MCH clinics was shown. We propose that in Israel, MCH clinics can serve as an ideal environment to provide this information. This study included only Jewish women living in the central district of Israel. Women living in the peripheries or non-Jewish women might have different needs and expectations. We recommend that a national survey be conducted on this issue. References Armon, J.M., McPermont, M.P., & Schiffer, R.B. (1996). Psychological characteristics of MS patients: Determining differences based upon participation in a therapy regimen. Rehabilitation Nursing Research, 8, 102–111. Anderson, G., Monsen, R.B., Prows, C.A., Tinley, S., & Jenkins, J. (2000). Preparing the nursing profession for participation in a genetic paradigm. Nursing Outlook, 48(1), 23–27. Blumberg, L. (1994). 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