Incidence of multiple births in an Indian rural community.

Abstract

SUMMARY In this paper we report on the incidence of multiple births in a rural community of India in the period 1966-75. The incidence is an improvement on estimates reported earlier by various authors and the information would be useful for studying secular trends.

Twinning rates and survival of twins in rural Nepal

“…Twinning rates appear to vary substantially across geographical areas and by ethnicity. [9][10][11][12][13][14][15] Some of this variation is due to differences in the definition of twinning, and whether stillborn infants are included or not. An additional problem is the higher rate of twinning in hospital-based studies than would be observed in the population, since twins would be more likely to deliver in hospitals.…”

“…A large hospitalbased study in California found a rate of 8.9 per 1000 deliveries in a predominantly Mexican-American population. 12 Among Fijians of Indian ethnicity, the twinning rate was 6.2 per 1000 pregnancies, 13 but the rate was 9.0 per 1000 in a rural area outside of Bombay 15 and in Bangladesh. 1 The twinning rate, inclusive of stillbirths in our population-based study in Nepal was 12.6 per 1000 pregnancies in the placebo group (95% CI : 9.55, 15.65).…”

“…10,17 The rate was 2.8, 4.7, and 3.6 per 1000 among Indians in Fiji, in rural India, and in Bangladesh, respectively. 1,13,15 Rates for whites, blacks, Chinese and Japanese in California varied from 3.9 to 4.8 per 1000. 9,12 As was seen in Bangladesh, rural India, and Indians in Fiji, the rates of twinning in Nepal increased with increasing parity.…”

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

“…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%).…”

“…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 ]…”