The epidemiological characteristics of twinning in Northwest India

Sharma, Kaushal

doi:10.1007/bf02447887

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…In the present study, the highest multiple birth rate was observed in a parity group of 4. Two studies in India also reported higher risks in high parities and the rate picked at parity of 4 (Rao, 1978; Sharma, 1997). Another study in India found a twinning rate of 6/1,000 deliveries among mothers with pregnancy order of 1 and the rate increased significantly to reach 19/1,000 in women with birth order of 4 or more (Satija et al, 2008).…”

Section: Discussionmentioning

confidence: 98%

Multiple Births in Sub-Saharan Africa: Epidemiology, Postnatal Survival, and Growth Pattern

Gebremedhin

2014

Twin Res Hum Genet

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The study endeavored to assess the epidemiology, postnatal survival, and growth pattern of multiple births in Sub-Saharan Africa (SSA). It was based on the data of 25 demographic health surveys conducted in the subcontinent since 2008. The records of 213,889 children born in the preceding 59 months of the surveys were included. The multiple birth rate was computed as the number of multiple confinements per 1,000 births. Factors associated with multiple births were identified using logistic regression and their survival pattern was assessed using the Kaplan-Meier method. The multiple birth rate was 17.1 (95% confidence interval: 17.7-16.6) and showed considerable variation across the 25 countries included in the study. Odds of multiple births were significantly increased with advanced maternal age, parity, and maternal height but not with wealth index, age at first birth, and month of birth. At the end of the fourth year of age, the cumulative survival probability was as low as 0.77 in multiple births as compared to 0.93 in their counterparts. The odds of neonatal, infant and under-five mortality were 5.55, 4.39, and 3.72 times increased in multiple births, respectively. Multiple births tend to be malnourished than singletons and the odds of wasting, stunting, and underweight were 1.31, 1.83, and 1.73 times raised, consecutively. Nevertheless, multiple births regain their weight-for-age (WFA) and height-for-age (HFA) deficits by the end of the fourth year of age. Counseling pregnant mothers with multiple gestation to give birth at a health institution and providing close medical follow-up during and after the neonatal period can improve the survival of multiple births.

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Section: Discussionmentioning

confidence: 98%

Multiple Births in Sub-Saharan Africa: Epidemiology, Postnatal Survival, and Growth Pattern

Gebremedhin

2014

Twin Res Hum Genet

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“…The DZ twinning was much higher than found in other Indian studies where analysis was done using Wienberg’s Differential method. [ 8 9 10 11 ] The number of like twins were 102 (68% – MZ-34, DZ-68) and unlike twins were 48 (32%). Using the Weinberg’s method in the present study, MZ can be calculated to 54 (36%) and DZ 96 (64%).…”

Section: Discussionmentioning

confidence: 99%

“…In the past many decades, there have been few epidemiological studies involving twins in India. [ 8 9 10 11 12 ] Over the recent decades with the dynamicity of the populations between the rural and urban areas, the improvement in the health awareness associated with better education opportunities, improving birth rates, advancement in the urban lifestyle with progressive women employment and empowerment, the demographic trends in the society including the twin’s subgroup is also changing. [ 13 ]…”

Section: Introductionmentioning

confidence: 99%

Twinning rates in Chennai, India – A cross-sectional study

Anil

Kuppan

Samuel

et al. 2022

Journal of Family Medicine and Primary Care

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Context: The city of Chennai is one of the largest metropolitan cities in India where apart from a large traditional population, there has been a continuous migration from rural areas and growing sophistication in lifestyle. Twinning rates trend in the present world would be interesting to study. Aims: The aim of the present study was to analyse the twinning rate in the city of Chennai, the distribution amongst various city zones and the present trends in the co-relation between the maternal age of the twins with the zygosity. Settings and Design: A population-based study was conducted on twin births in various corporation Zones in the Chennai Metropolitan, between 2010 and 2012. As per the Chennai corporation and Health Department register, there were a total of 2,32,884 births registered in the city of which 4,500 were twin births over the 3 years. Only 1371 pairs were found residing in Chennai at the time of study, and hence, a study was conducted on this population only. Satistical Analysis Used: The data were analysed with Epiinfo software. Results: A twining rate of 19.3 per 1000 births was observed as per Corporation records. In the present study, the sample of 150 pairs, 34 pairs (22.6%) comprised of monozygotic (MZ) twins and 116 pairs (77.3%) comprised of dizygotic twins giving a ratio of 1:3. The maternal age groups 25–30 and 30–35 years comprised of the maximum twinning rates. Most twin births were of the first order. An analysis of Weinberg’s Differential Rule method to determine zygosity showed a significant difference compared to the Questionnaire method. Conclusions: The twinning rate observed in Chennai in the present study is interestingly very high, compared to the overall twinning rate reported in the past in the state of Tamilnadu. The Wienberg’s Differential method for zygosity determination is again found to be questionable. The zygosity proportion, maternal age and parity relations are not very different from previously available data.

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The Twinning Rates and Epidemiological Characteristics of Births in Southeast Uttar Pradesh, India

Sharma

1997

Acta genet. med. gemellol.: twin res.

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Birth statistics over a period of 5 years were analyzed to study epidemiological characteristics of twinning in Southeast Uttar Pradesh, India. The data revealed higher incidence of breech twins (11.84% of all cotwins) as compared to breech single births (2.18%). But the perinatal mortality and caesarean section rates were similar in both twin and singleton pregnancies. The cumulative twinning rate over the studied period was 11.70 per 1000 live births. The MZ and DZ twinning rates were estimated respectively as 3.67 and 8.03 per mill. The mean maternal age of sampled mothers was 26.42 years with one standard deviation of 5.30 years. The twinning rate for mothers over 35 years of age was about four times higher than that in mothers younger than 20 years. Incidently, the twinning rate was the highest at parity four and a non-linear curve could more appropriately be fitted to the series of data. Seasonal variations were observed for both twin and singleton births. The highest frequency of births was observed from August through October. But seasonal index for twinning rate showed a clear bimodal distribution with peaks in April (223) and September (167).

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The epidemiological characteristics of twinning in Northwest India

Cited by 4 publications

References 20 publications

Multiple Births in Sub-Saharan Africa: Epidemiology, Postnatal Survival, and Growth Pattern

Multiple Births in Sub-Saharan Africa: Epidemiology, Postnatal Survival, and Growth Pattern

Twinning rates in Chennai, India – A cross-sectional study

The Twinning Rates and Epidemiological Characteristics of Births in Southeast Uttar Pradesh, India

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