Reproductive behavior and health in consanguineous marriages

  title={Reproductive behavior and health in consanguineous marriages},
  author={AH Bittles and Wm. Clarke Mason and J Greene and Naropantul Appaji Rao},
  pages={789 - 794}
In many regions of Asia and Africa, consanguineous marriages currently account for approximately 20 to 50% of all unions, and preliminary observations indicate that migrants from these areas continue to contract marriages with close relatives when resident in North America and Western Europe. Consanguinity is associated with increased gross fertility, due at least in part to younger maternal age at first livebirth. Morbidity and mortality also may be elevated, resulting in comparable numbers of… 

Consanguineous marriage and childhood health

  • A. Bittles
  • Psychology
    Developmental medicine and child neurology
  • 2003
The aims of this annotation are to review briefly the current global prevalence of consanguineous marriage and to estimate and describe the deleterious outcomes expressed in the early years of life.

Review Article - The Impact of Consanguinity on the Indian Population

Both postnatal morbidity and mortality are increased, with greatest effect so far observed in the early years of life, and recessive genetic disorders will progressively gain greater prominence in the overall spectrum of ill-health with declining mortality and morbidity due to infectious disease.

Inbreeding in human populations and its influence on fertility and health

There is an urgent need for extended studies into the entire topic of human inbreeding, which to date has been the focus of little inter-disciplinary research.

Case Report on Consanguineous Marriage

Marriage in Indian society is a religious duty. Consanguineous marriage is common, where individuals prefer to marry within their clan. Traditionally, some cultures have practiced and continue to

Effects of consanguineous marriage on reproductive outcome in an Arab community in Israel.

A prominent public health problem associated with consanguineous marriage in the Arab community and a need for specific genetic counselling are indicated.

The demographic, health and social implications of consanguinity in Pakistan

The recent Pakistan Demographic and Health Survey (PDHS) shows that 63 per cent of all marriages in Pakistan are consanguineous, an overwhelming majority of them being marriages between first

Assessment of association between consanguinity and fertility in Asian populations.

The association between consanguinity and fertility was assessed reviewing published literature and analyzing demographic and health survey data from Pakistan and India, showing higher fertility among women in the first-cousin unions compared to those married to non-relatives.

Consanguinity, human evolution, and complex diseases

A range of primarily social factors, including urbanization, improved female education, and smaller family sizes indicate that the global prevalence of consanguineous unions will decline, which will initially result in decreased homozygosity, accompanied by a reduction in the expression of recessive single-gene disorders.

Genetic and reproductive consequences of consanguineous marriage in Bangladesh

The harmful consequences of CM on reproductive behavior and the incidence of hereditary conditions in Bangladesh highlights the need for genetic counseling from premarital to postnatal levels in Bangladesh.



Consanguineous marriage and reproduction in Beirut, Lebanon.

  • M. Khlat
  • Economics
    American journal of human genetics
  • 1988
Effects of consanguineous marriages on couples' fertility and on offspring mortality were investigated in Beirut through a population-based health survey of 2,752 households, and the issue of confounding is discussed.

Consanguinity, spousal age at marriage and fertility in seven Pakistani Punjab cities.

A retrospective study was conducted on spousal age at marriage, time to first birth and total pregnancies in the populations of seven cities in the Pakistani province of Punjab. Consanguineous

Empirical risks in consanguineous marriages: sex ratio, malformation, and viability.

  • W. Schull
  • Medicine
    American journal of human genetics
  • 1958
The effects of inbreeding on the sex ratio, the frequency of major congenital malformations, stillbirths, neonatal deaths, and infantile deaths in Japan are described.

Trends in human reproductive wastage in relation to long‐term practice of inbreeding

Taking into consideration the various socio-demographic factors, the narrowing differentials in the reproductive wastage between consanguineous and non-consanguineously marriages from the oldest to the youngest women confirm the tapering effects of continued inbreeding practices on the reproductive Wastage.

Consanguineous marriages and the genetic load due to lethal genes in Kerala

During the present study, several hospital populations in Kerala were examined for the relative mortality and morbidity of offspring from the two types of marriages and the method developed by Morton et al. (1956) for the estimation of genetic load was used for analysing the data on mortality.

Consanguinity, twinning and secondary sex ratio in the population of Karnataka, south India.

The results indicate that consanguinity is not associated with excess antenatal losses and suggest the possibility of enhanced selection against mutations at X chromosome loci.

The effect of consanguineous marriages on reproductive wastage

No consistent increase in reproductive wastage was evident as the inbreeding coefficient, F, advances mainly because of decline in the wastage rate among the double first cousin marriages which represents only 2% of the sample.

Perception of consanguineous marriages and their genetic effects among a sample of couples from Beirut.

In general, the women in consanguineous marriages were more favorably inclined than the matched women to marriages between relatives; however, about half of each group would advise their son/daughter to marry his/her cousin.

Consanguineous marriage among rural Arabs in Israel.

The prevalence of consanguineous marriages was examined among the Arab rural population in the Western Galilee region in Israel, and the most common type was first-cousin marriages, especially where the husband's father and the wife's father were brothers.

Inbreeding and the incidence of childhood genetic disorders in Karnataka, South India.

The results suggest that long term inbreeding may not have resulted in appreciable elimination of recessive lethals and sub-lethals from the gene pool.