Effects of Parental Consanguinity on Fertility, Mortality and Morbidity among the Pattusalis of Tirupati, South India

Reddy, Rami; Rao, P. S. S.

doi:10.1159/000152961

Cited by 58 publications

(11 citation statements)

References 6 publications

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“…The results are in agreement with the ob servations in South Indian studies Inbaraj, 1977, 1979a, b;Reddy and Rao, 1978;Hann, 1985]. The lack of any demonstrable effects of inbreeding on fer tility and morbidity in the highly inbred population of the Sudan can be explained by the long practice of a high level of inbreeding in the population.…”

Section: Resultssupporting

confidence: 90%

“…The number of pregnancies per marriage was found to be higher in consanguineous marriages (5.08 and 5.27) compared to that in non-consanguineous marriages (4.33) which corresponded with a lower average marital period in the latter group. Higher fertility in inbred marriages has been reported in other studies also [Reddy and Rao, 1978;Hann, 1985]. The proportions of abortion, still births and neonatal death were not influenced by the presence of inbreeding.…”

Section: Methodssupporting

confidence: 72%

“…The significance of an increased rate of child hood deaths in the inbred group in the ab sence of other detrimental effects of inbreeding is difficult to assess. Increased post-natal mortality due to inbreeding has also been reported by Reddy and Rao [1978] and Hann [1985] in South Indians. The total reproductive loss was quite high in all the groups (0.28-0.31) and was not related to inbreeding.…”

Section: Methodsmentioning

confidence: 81%

“…The Scientific Com mittee on the Effects of Atomic Radiation (United Nations) [1962] computed the ef fects of inbreeding on morbidity and mor tality in three countries -USA, France and Japan -and showed that inbreeding increases the reproductive loss as well as the morbidity. However, more recent stud ies in Japan and Brazil reveal a moderate to slight impact only [Schull et al, 1970;Schull and Neel, 1972;Freire-Maia et al, 1974], Further, a prospective study carried out in Tamil Nadu of South India on a large sample of 11,628 rural and 8,998 ur ban couples for several years did not re veal any detrimental effects of inbreeding on human reproduction and on the mor bidity Inbaraj, 1977, 1979a, b], Reddy and Rao [1978] and Hann [1985] also did not observe any significant effect of inbreeding on the mean level of fertility in another population in the Karnatak State in South India. Sanghvi [1982] sug gested that if inbreeding is practised in a population at a high level for a long time, the deleterious homozygotes might have been eliminated in earlier generations.…”

Section: Introductionmentioning

confidence: 90%

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Inbreeding Effects on Reproductive Outcome in a Sudanese Population

1990

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926 women attending the Obstetrics and Gynaecology Department of the Faculty of Medicine, Khartoum, were investigated to study the inbreeding effects on reproductive profiles and morbidity of the offspring. 49.5% of the women had married their first cousins and 13.8% had married more distant relatives. Altogether, 4,471 pregnancy outcomes were analysed including abortions, still births, neonatal and childhood deaths, physical deformity, mental retardation and other congenital abnormalities. No significant difference in the reproductive loss or net fertility was observed between the inbred and outbred groups. Only the proportions of childhood deaths were found to be significantly higher in the inbred marriages (p < 0.005). The morbidity was also not affected by the practice of inbreeding.

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Section: Resultssupporting

confidence: 90%

Section: Methodssupporting

confidence: 72%

Section: Methodsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 90%

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Inbreeding Effects on Reproductive Outcome in a Sudanese Population

1990

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“…Many papers can be found in the bibliography, in which diverse factors regulating infant risk of death are analyzed, such as sex (Harpending and Pennington, 1991), parental consanguinity (Reddy and Rao, 1978;Reddy, 1985), twining (Bulmer, 1970), parity (Swenson et al, 1993), birth interval (Brittain, 1992;Hobcraft et al, 1985), or maternal age (Reddy, 1985;Swenson, 1981). The ecological characteristics of a geographical area can also influence the infant mortality pattern.…”

mentioning

confidence: 99%

Child age influence on the seasonal death risk during the first year of life (Spain, 1975–1989)

Luna

Alonso-Ferreira

Fuster

et al. 2008

American J Hum Biol

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Infant mortality rate reflects a population's health status, which depends on several factors, such as diseases, environment, child development, and other population characteristics that can show seasonal change throughout the year. This article deals with the relevance of child age on the probability of death in the different seasons throughout the first year of life, taking into account the illnesses causing death. The study was carried out using a file from the Spanish National Institute of Statistics. To eliminate bias related to health improvement, only the 49,761 urban deaths corresponding to capital of provinces, taking place between 1975 and 1989, were considered. The variables analyzed were: the month in which death took place, disease causing death, and the child age at death. Since many causes of death are very infrequent, the analysis was limited to a selection of the most common 45,155 death cases. The causes of death analyzed were: digestive, nervous and sensory, circulatory, and respiratory diseases, delivery difficulties, congenital anomalies, and signs and syndromes (WHO, ICD-9). The infant mortality rates are associated with the child age at death. Moreover, a general ontogenetic change of the death risk can be observed, with some particularities depending on the disease analyzed. In general, regarding all infant deaths, the obtained results suggest a higher risk of dying in winter for children surviving the first month of life, whereas a summer pattern, with a maximum mortality in June, July, and August, appeared when newborns younger than 1 week were considered.

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Dermatoglyphic affinities among the Telugu populations with contrasting ethnohistorical backgrounds

Reddy

1992

American J Hum Biol

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Using 22 finger dermatoglyphic variables (radial and ulnar ridge counts on each of the 10 fingers, total number of whorls and total number of loops per individual), affinities among the five endogamous populations of Andhra Pradesh with contrasting ethnohistorical backgrounds were examined. The samples constitute rolled fingerprints of 1,334 individuals of all ages, 736 males and 598 females, and were drawn from the three southern districts o f h d h r a Pradesh. Univariate analysis of variance, cluster analysis of Mahalanobis' D"-values, and stepwise discriminant analysis were employed t o study the extent of population heterogeneity and nature of relationships among them. The observed dermatoglyphic affinities conform to the known ethnohistorical and geographical backgrounds. The smallest set of 9 most discriminating variables gives the best configuration expected under ethnohistorical backgrounds. Addition of more variables, although further augmenting the dispersion among the group centroids, distorts the picture of known ethnohistorical relationships. Q 1~9 2 wiley-Liss, Inc.

show abstract

Effects of Parental Consanguinity on Fertility, Mortality and Morbidity among the Pattusalis of Tirupati, South India

Cited by 58 publications

References 6 publications

Inbreeding Effects on Reproductive Outcome in a Sudanese Population

Inbreeding Effects on Reproductive Outcome in a Sudanese Population

Child age influence on the seasonal death risk during the first year of life (Spain, 1975–1989)

Dermatoglyphic affinities among the Telugu populations with contrasting ethnohistorical backgrounds

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