Factors affecting the uptake of screening for neural tube defect

Reproductive attitudes of couples having a child with cystic fibrosis in Brittany (France)

Cystic fibrosis (CF) has an incidence of one in 2,636 livebirths and a carrier rate of one in 26 inhabitants in Brittany. One objective of a major enquiry among parents having a CF child as well as CF adolescents and adults was to evaluate the reproductive behavior of 124 couples attending a CF care center. Knowledge of recurrence risk resulted in deciding against further progeny or in reducing the number of children (average number of children: 1.96; ideal mean number of children: 3.7). Thirty-five percent adopted or changed their method of contraception after the birth of their affected child, but the change was due to the birth of the CF child in only 14.3% of the couples. Prenatal diagnosis (PD) was favored by 95.1%, and 41.2% had used it; 68.6% were in favor of pregnancy interruption for CF and 76.2% would interrupt the pregnancy should PD reveal that their fetus had CF. All 123 respondents thought that genetic counseling was useful, but only 87.1% knew of its availability. Our results are quite different from those previously published. Although results could be population-specific, one cannot exclude the fact that they reflect a change of attitudes among parents, the other studies being much older.

Knowledge of oral cancer, distress and screening intentions: longer term effects of a patient information leaflet

Study aim was to determine the influence of a patient information leaflet (PIL) on mouth cancer to improve knowledge, reduce distress and increase intention to accept a mouth screen over a 2-month period. The design was a randomised controlled trial. Two dental practices in the northwest of England participated. Standardised multi-item scales of the three outcome measures were employed. The PIL was given to a randomised intervention group of patients in waiting room. Single sheet questionnaire was completed by both groups of patients at baseline in waiting room (immediately following leaflet administration in intervention arm of study). Repeat questionnaire completion at 8 weeks by all patients through postal system. Mann-Whitney U-tests comparing outcome variables between patients with and without access to the leaflet at baseline and 8 weeks were performed. Multiple logistic regression was used to predict re-reading of the leaflet at home. Useable replies were received from 317 patients (60% response rate). All measures showed some benefit of immediate exposure to the leaflet at follow up. Older patients, less initial knowledge, and self-reported smoking positively predicted the re-reading of the leaflet. The introduction of a mouth cancer PIL into dental practice may help to inform patients about oral cancer, moderate distress and encourage acceptance of an oral health screen.

Survey of the knowledge, attitudes and experiences of Western Australian women in relation to prenatal screening and diagnostic procedures

OBJECTIVE

To determine the knowledge, attitudes and experiences of women in Western Australia (WA) regarding prenatal procedures.

DESIGN

A self-administered mail survey.

SAMPLE

The survey was sent to all women who gave birth during July 2001 (n = 1801). The participants were 633 women aged 15-45.

RESULTS

The mean total knowledge score was 16 out of a possible 26 (62%). The average score for all three attitude factors was four, 'agree', on a Likert scale of five. Women who reported they had private health insurance and women in the metropolitan area had significantly higher knowledge levels and had significantly more positive attitudes towards the adequacy of information. Those who did not have a screening test had less positive attitudes towards the value of the tests and had less confidence in results. Those with higher educational attainments had higher knowledge and less positive attitudes towards the value of the tests.

CONCLUSIONS

Women felt positive towards the value of the tests, were confident in their results and felt positive towards the adequacy of information; however, their understanding of this information seems to be poor. It seems that the choice to undergo testing is not well informed. It was clear women need more support, information, explanations, and more time to absorb the information.

Elective amniocentesis in low-risk pregnancies: decision making in the era of information and uncertainty

OBJECTIVES

Rational choice theory was applied to explain women's use of amniocentesis. Variables included knowledge about prenatal diagnostics, attitudes, and emotional preferences.

METHODS

Using structured instruments at 9 to 14 and at 29 to 34 weeks' gestation, we interviewed 232 Israeli women who had low-risk pregnancies.

RESULTS

Women who had elective amniocentesis (n = 39) were more knowledgeable about prenatal diagnostics, risks of invasive procedures, and probability of fetal abnormality in high maternal age; had fewer children; and had less favorable attitudes toward parenthood than those who had medically indicated amniocentesis (n = 57) and those who did not have amniocentesis (n = 136).

CONCLUSIONS

The use and possible overuse of amniocentesis were associated with having more information about prenatal diagnostics and definite emotional preferences.

Reproductive attitudes of couples having a child with cystic fibrosis in Saguenay-Lac-Saint-Jean (Quebec, Canada)

Cystic fibrosis (CF) has a high incidence (1/936 live births) and carrier rate (1/15 inhabitants) in Saguenay-Lac-Saint-Jean. One objective of a major enquiry among several subsets of individuals from this high-risk population for CF was to evaluate the reproductive behaviour of couples with a CF child attending the comprehensive CF clinic in Chicoutimi. The knowledge of the recurrence risk resulted in deciding against further progeny or in reducing the number of children. More reliable contraception methods after the birth of the CF child, but not prenatal diagnosis, were used. Although a minority of parents with a CF child would abort a CF foetus, they apparently started viewing pregnancy interruption for CF after prenatal diagnosis as an acceptable reproductive option.

Women's decision-making in prenatal screening

With serum screening (MS-AFP and hCG testing for Down's syndrome) women have to make several decisions in a limited time: whether to participate in the screening in the first place; then, if increased risk for fetal abnormality is detected, whether to have a diagnostic test, and finally, what to do if fetal abnormality is detected. The aim of this study was to examine how women themselves in an unselected population describe their decision-making in the different phases of serum screening. Women receiving a positive result from serum screening in two Finnish towns from September 1993 to March 1994 and a group of individually matched controls were invited to semistructured interviews; 45 index and 46 control women (79% of those invited) participated between their 29th and 37th weeks of gestation (mean 31 weeks). Although serum screening was most often presented as voluntary or as an option, half the women described participation as a routine or self-evident act; only one-fourth of the women described actively deciding about participation. After a positive screening result, women's reactions to diagnostic tests, and their intentions if disability would be detected, varied greatly. Most of the women actively decided about having diagnostic tests, but for 23% participation in diagnostic testing was called a self-evident act. Women's intentions regarding abortion varied from a firm decision to abort to a firm decision not to abort, and many remained ambivalent. Prenatal screening, which demands the making of several decisions in a limited time and is offered to all pregnant women as part of established maternity care, is not based on every participant's active decision-making and thus creates an ethical problem. This problem should receive special attention from those who develop, introduce and decide on new health care practices.

Why women say yes to prenatal diagnosis

Despite considerable concern of bioethicists, disabilities rights activists, feminists and others about the spread of prenatal diagnostic technologies, their routine acceptance in many parts of the world continues at a rapid pace. Yet, there is wide variation by country and region in rates of acceptance of prenatal diagnosis. We draw on John McKinlay's model of how a medical innovation becomes routinized to explore the circumstances that led to the widespread use of one prenatal diagnostic screen-the maternal serum alpha fetoprotein (MSAFP) test for the detection of neural tube defects and other developmental disabilities. As predicted by McKinlay's model, analysis of published data suggests that strong institutional or provider support is the best predictor of women's level of MSAFP test acceptance. Data collected at a health maintenance organization in California illuminate the processes through which medico-legal and institutional forces affect the use of MSAFP screening. By examining the language women use to talk about MSAFP screening, we show how providers also shape women's understandings of the meaning and purpose of MSAFP screening. These data ultimately shed light on how the very ethical issues which concern critics of prenatal diagnosis become obscured in the processes by which this screening test becomes accepted as routine.

Routine antenatal screening: not a case of informed choice

Traditional epidemiological criteria are inadequate for comprehensively evaluating screening activities to identify best practice. In 1995, a study of women in the postnatal period at a major metropolitan teaching hospital in Victoria was conducted to assess, through their perspectives, the role of other factors of significance for the evaluation of routine antenatal screening. In particular, the role of informed choice was examined. The study involved a survey of 376 women and 21 semistructured interviews. The study found that, with an 'opt-out' or routine system of screening, high rates of use were achieved at the expense of informed choice for some participants. In addition, disturbing differences in information delivery and information perception were found between public and private patients. The need for new criteria to identify what constitutes best practice in the delivery of antenatal screening programs is discussed. These criteria should incorporate consideration of broader social and ethical implications for women receiving antenatal screening.

Presenting a routine screening test in antenatal care: practice observed

People's knowledge of screening tests for which they are eligible and which they may have undergone is frequently low. The aim of the current study is to determine the extent to which this is due to how a test is offered and explained. Routine consultations (n = 102) between midwives, obstetricians and pregnant women were tape-recorded to determine how a routine screening test for fetal abnormalities (maternal serum alpha-fetoprotein) is presented. The test was presented in the vast majority of consultations. Overall, little information was provided about the test, the conditions screened for, and the meaning of either a positive or a negative result. Screening was presented in such a way as to encourage women to undergo the test. The way in which routine prenatal screening is presented is unlikely to maximise informed decisions about whether to participate in this screening programme. Factors likely to be influencing test presentation include knowledge, attitudes and skills of staff, as well as the attitudes of pregnant women. The results of this study highlight a need to train the heath professionals implementing screening programmes in how to inform people fully about low probability but serious events without alarming them unduly, or reassuring them falsely.

Attitudes toward abortion among parents of children with cystic fibrosis

BACKGROUND

DNA prenatal diagnosis for cystic fibrosis (CF) has been available for parents of affected children since late 1985.

METHODS

Using anonymous questionnaires, we surveyed 395 parents of children with CF at 12 New England CF centers with regard to 12 maternal or family situations and 11 fetal characteristics; 271 (68%) responded.

RESULTS

The majority supported legal abortion in the first trimester for all 23 situations; 58% would abort for severe mental retardation (MR), 40% would abort for a genetic disorder leading to death before age five years, 41% for a child bedridden for life, 35% for moderate MR, 20% for CF and 17% for a severe incurable disorder starting at age 40 years. Few would abort for a disorder starting at age 60 years, for genetic susceptibility to alcoholism or for sex selection. Variables most strongly related to abortion for CF were attitudes of spouse, respondent's siblings, and CF doctor toward abortion for CF as well as infrequent attendance at religious services.

CONCLUSIONS

Prenatal diagnosis may not reduce substantially the number of CF births to parents of CF children because most do not accept abortion for CF.