Awareness of consanguineous marriage burden and willingness towards premarital genetic testing in Sudan: a national cross-sectional study

Background

Despite the widespread practice of consanguinity in Sudan, there is a lack of exploration into the community's awareness of its health implications on offspring and their overall attitude towards consanguineous unions.

Aim

This study aimed to evaluate the community's awareness of the possible health adversities of consanguinity on children and assess the effect of knowledge level on the prevailing attitude towards this practice in Sudan.

Methods

From August to December 2018, data were collected from adults aged 18 years and above in five provinces of Sudan regardless of their marital status. The analysis involved both descriptive and multivariate statistical techniques.

Results

This study revealed a consanguinity rate of 30.2%. Despite a high awareness level (73.7%) regarding the effects of consanguineous marriage on the health of the offspring, a moderately negative attitude towards this practice (63.9%) was observed.

Conclusion

The discordance between the high consanguinity rate in the Sudanese population and the moderately negative attitude suggests a potential persistence of this practice in the future. Without the implementation of educational programs and the provision of genetic counselling services to consanguineous couples, the prevalence of consanguinity is likely to endure.

Determinants of childbearing intentions among pregnant women with a suspected fetal congenital heart disease

BACKGROUND

The Saudi population is characterized by a high fertility rate, a conservative sociocultural context, and an ongoing societal and lifestyle transition. Yet, data regarding childbearing intentions and the associated factors is scarce. Furthermore, childbearing intention may be impacted by abnormal pregnancy events, such as the clinical suspicion or diagnosis of a fetal congenital disease and the negative experience that may result from it.

OBJECTIVES

The present study explored childbearing intention and determined the sociodemographic and health-related factors discouraging from future pregnancies among women visiting the cardiology clinic for antenatal screening of congenital heart diseases (CHD).

METHODS

A one-year cross-sectional study involved 150 consecutive pregnant women aged between 18 and 47 years old, who presented for antenatal screening of CHD at the fetal echocardiography clinic for, of a teaching hospital in Jeddah, Saudi Arabia. An interview-based questionnaire was administered before the clinic visit and collected sociodemographic data, obstetrical history, risk factors of congenital diseases, mothers' knowledge about fetal echocardiography and CHDs, and childbearing intention (the primary outcome).

RESULTS

Fetal echocardiography and CHD were correctly described by 60 % and 31.3 % of the participants respectively, while 40.7 % and 12 % recognized the association of congenital diseases with consanguinity and advanced maternal age respectively. Childbearing intentions showed 68.0 % of the participants declared desiring a future baby while the remaining 32.0 % declared having no further pregnancy expectations. Attitudes towards a hypothetical baby with CHD were positive in 97.3 % of the participants, and only 30 % declared that the fetal echocardiography results will impact their future childbearing decision. However, childbearing intention showed no significant association with knowledge or attitudes towards CHD. On the other hand, childbearing intention was independently associated with the number of children (OR=0.34; p<0.001), consanguinity with husband (OR=3.64; p = 0.010), and history of gestational diabetes (OR=0.28; p = 0.040).

CONCLUSION

Fertility expectations among Saudi mothers are more likely to be impacted by the personal experience and judgment of own pregnancy fitness, while no significant impact of fetal risks and events. This demonstrates a certain level of autonomy balanced with deeply rooted religious ethics yet combined with a lack of awareness about fetal and maternal risks associated with advanced maternal age and consanguinity. We emphasize the unmet need of education and family planning.

The Impact of Increased Homozygosity on Human Fertility: A Comprehensive Review

This comprehensive review explores the multifaceted relationship between increased homozygosity and human fertility, delving into the genetic, ethical, cultural, and public health dimensions of this complex phenomenon. Homozygosity, characterized by identical alleles at specific gene loci, can result from consanguineous marriages, genetic drift, and population isolation. The review highlights key findings, including the heightened risk of recessive genetic disorders, the implications for immune system diversity, and the influence on complex traits and diseases. It underscores the critical role of genetic counseling in addressing these consequences, considering the ethical implications, and respecting cultural practices. The delicate balance between genetic diversity and cultural norms is emphasized, calling for increased awareness and community engagement. Looking ahead, the review suggests emerging technologies, longitudinal studies, and interdisciplinary research as crucial avenues for further exploration, with the ultimate goal of informing effective public health policies and interventions that safeguard genetic diversity and cultural traditions for future generations.

Prevalence and pattern of consanguineous marriage among educated married individuals in Riyadh

Consanguineous marriage is preferred in many countries, especially by Muslims. Despite the increasing education rate in Saudi Arabia, the prevalence of consanguineous marriage does not seem to be decreasing as quickly as expected. The present study aimed to investigate the current prevalence of consanguineous marriage among educated married adults in Riyadh and to determine the factors favouring it. The cross-sectional study was conducted in 2017-18 using an online questionnaire. A total of 550 questionnaires were sent to married adults of both sexes and 417 responded, giving a response rate of 75.8%. The questionnaire consisted of two parts: the first section asked for demographic data such as age, sex, educational level, residential area and family size. The second part was about consanguineous marriage and its degree if present, family history of consanguineous marriage and level of awareness of its potential negative impact on offspring. It was found that the prevalence of consanguineous marriage among the participating educated adults was 39.8% and most of these were married to a first cousin. Neither level of education nor age affected the likelihood of consanguineous marriage, but predictors for the practice among the educated participating adults were having a family history of consanguineous marriage, having consanguineous parents and having a personal preference for consanguineous marriage. In conclusion, the prevalence of consanguineous marriage among educated adults in Riyadh was still high in 2018, especially among first-cousin relatives, and this was related to family history and personal preference rather than educational level or age. It is recommended that further research is conducted to assess the level of knowledge about, and attitude towards, consanguineous marriage among adults in Saudi Arabia.

A population-based study of inter-generational attitudes towards consanguineous marriages in north-eastern Brazil

The aim of this cross-sectional study was to investigate beliefs, attitudes and reproductive behaviours in relation to consanguinity in a population living in the backlands of north-eastern Brazil. Data were collected by face-to-face interview from 147 high school students aged 13-20 years and from 532 elderly individuals aged 60 years and over from Brejo dos Santos in the state of Paraíba in 2017. The frequency of consanguineous marriage was found to have increased over the generations, being 15.9% in the parents of the elderly participants, 17.1% in the elderly participants themselves and 20.5% in their descendants. Although 258 (50.9%) of the elderly interviewees opposed consanguineous union, 341 (65.3%) would approve of the marriage of their children with relatives. Both the young (n=108 or 78.3%) and elderly (n=398 or 80.4%) interviewees believed that consanguineous marriages were no more durable than non-consanguineous marriages (p=0.578). Additionally, 408 (82.4%) of the elderly individuals and 108 (80.6%) of the students recognized that spouses in consanguineous unions experience conflicts, just like other couples do (p=0.625). In both groups, the majority of the participants did not believe that consanguinity increased the risk of having children with disabilities. The regression of the two continuous variables 'age' and 'positive attitudes score' showed a significant correlation, suggesting that younger individuals are more susceptible to the influence of cultural factors contributing to consanguinity, such as the opinions of their parents and grandparents. The belief that consanguineous unions are more durable showed a significant difference between elderly individuals in consanguineous and non-consanguineous unions (p=0.001); the former were 2.42 more likely to believe that marriages between relatives contributes to marriage durability.

Risk factors for maternal anaemia and low birth weight in pregnant women living in rural India: a prospective cohort study

OBJECTIVE

The aim of this prospective study was to estimate the prevalence and risk factors for maternal anaemia and low birth weight (LBW) in pregnant women living in Maharashtra state, India.

STUDY DESIGN

This is a prospective study.

METHODS

Women between 3 and 5 months of pregnancy were recruited from 34 villages based in Maharashtra state. Baseline data collection, anthropometric measurements and blood investigations were performed. Participants were followed-up to record birth weight.

RESULTS

In total, 303 women were eligible, and 287 (95%) provided data. 77% were anaemic, defined as haemoglobin less than 11.0 g/dl at the time of recruitment, with a mean corpuscular volume of 80.5 fl/cell (standard deviation: 7.22, range: 53.4-93.8). The increased risk of anaemia was seen in women with consanguineous marriages (odds ratio [OR]: 2.41, 95% confidence interval [CI]: 1.16-5.01, P = 0.01) after adjustment for potential confounding factors. Postdelivery data from full-term singleton live births demonstrated a 7% prevalence of LBW. Consanguineous marriage was a major risk factor for LBW (OR: 4.10, 95% CI: 1.25-13.41, P = 0.02). The presence of maternal anaemia during 3-5 months of pregnancy was associated with lower risk of LBW (unadjusted OR: 0.34, 95% CI: 0.13-0.92, P = 0.03).

CONCLUSION

About 30% of our study participants were in a consanguineous marriage, which was identified as a potentially avoidable risk factor for both anaemia and LBW.

THE PREVALENCE OF CONSANGUINEOUS MARRIAGES AND AFFECTING FACTORS IN TURKEY: A NATIONAL SURVEY

This study was carried out by the Turkish Republic Ministry of Health to determine the prevalence of consanguineous marriage and its correlates with socio-demographic and obstetric risk factors in women in Turkey. The cross-sectional, national-level study was carried out from October to December 2013. The study population was composed of women between the ages of 15 and 65 years living in Turkey. The sample size was calculated as 9290 houses within Turkey's 81 provinces so as to improve the Turkish rural-urban expectations by means of systematic stack sampling according to the Turkish Statistical Institute's address-based vital statistics system. The target sample size was 6364, but only eligible 4913 women, who had been married, were included in the study. The consanguineous marriage frequency in the sample was found to be 18.5%, and of these 57.8% were first cousin marriages. Women living in an extended family and whose education level and first marriage ages were low, and whose perceived economic status was poor, had higher frequencies of consanguineous marriage (p<0.001). Consanguineous marriage frequencies were higher (p<0.001) for women who had spontaneous abortions and stillbirths or who had given birth to infants with a congenital abnormality. In this context, it is important to develop national policies and strategies to prevent consanguineous marriages in Turkey.

Attitude of Saudi Arabian adults towards consanguineous marriage

Background: Research on the attitudes of Saudi adults towards consanguinity is scarce. The study aimed to explore the attitudes towards consanguinity and its associations with socio-demographic characteristics in a sample of Saudi adults. Methods: A cross-sectional study was conducted using a self-administered questionnaire. A total of 386 outpatient waiting-area attendees at King Abdul-Aziz Medical City-Riyadh were included. Participants were asked about their socio-demographic characteristics, attitude towards consanguinity and the reasons behind this. Results: The positive attitude towards consanguinity among the study respondents was 48.1% with 95% confidence interval (42.91–53.33%). Social and traditional culture (59.9%) were found to be the predominant reasons for favoring consanguinity in Saudi Arabia. Evidence against a positive attitude towards consanguinity was noted in respondents who received medical information about consanguinity versus those who had not received medical information (42.3% vs. 57%, p-value = 0.008). According to the multivariate logistic model, the odds of a positive attitude towards consanguinity were 2 times higher for males (adjusted odds ratio [aOR]: 2.2; 95% CI: 1.147, 4.290) and 4.1 times higher in respondents in consanguineous marriages (aOR: 4.1; 95% CI: 2.350, 7.156). The odds of a positive attitude towards consanguinity were 50% less in respondents who received health information on consanguinity compared to those who had not received health information about consanguinity (aOR: 0.50; 95% CI: 0.253, 0.863). Conclusion: One in every two Saudi adults favors consanguinity however, Saudi men and women differ in their attitudes towards consanguinity. Receiving health information on consanguinity was associated with a negative attitude towards this practice.