Hostname: page-component-848d4c4894-r5zm4 Total loading time: 0 Render date: 2024-06-27T20:58:55.626Z Has data issue: false hasContentIssue false
  • English
  • Français

Twinning Rate in a Southeastern Brazilian Population

Published online by Cambridge University Press:  01 August 2014

B. Beiguelman ,
C. Franchi-Pinto ,
H. Krieger  and
L.A. Magna
B. Beiguelman
Affiliation:
Department of Medical Genetics, School of Medicine, UNICAMP, Campinas, SP, Brazil
C. Franchi-Pinto
Affiliation:
Department of Medical Genetics, School of Medicine, UNICAMP, Campinas, SP, Brazil
H. Krieger
Affiliation:
Department of Parasitology, University of S. Paulo, S. Paulo, SP, Brazil
L.A. Magna
Affiliation:
Department of Medical Genetics, School of Medicine, UNICAMP, Campinas, SP, Brazil

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The twinning incidence from 1984 to 1993 was investigated in Campinas, State of São Paulo, Brazil, and the analyzed data were combined with previous series from the same population. This study has shown that the mean annual incidences and the standard deviations for DZ, MZ and DZ plus MZ twins for the period of 1984 to 1993 are estimated respectively as 4.7 ± 0.92, 4.1 ± 1.11, and 8.8 ± 0.87 per 1,000. In the same period the mean annual incidence of triplets was 0.15 ± 0.16. It was also shown that the incidence of DZ twins is steadily decreasing since 1925, while the incidence of MZ pairs, after a period of decline is increasing since the sixties, due perhaps to the widespread use of oral contraceptives. Concerning the twinning rate as a whole, it has been shown that its declining trend has disappeared over the last few years.

Keywords

Twinning rateDizygotic twinning rateMonozygotic twinning rateMultiple birthsSecular trendOral contraceptivesMaternal ageFecundity
Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 45 , Issue 3 , July 1996 , pp. 317 - 324
Copyright
Copyright © The International Society for Twin Studies 1996

References

REFERENCES

1.Allen, G, Schachter, J (1971): Ease of conception in mothers of twins. Soc Biol 18: 18–27.Google Scholar
2.Allen, G, Parisi, P (1990): Trends in monozygotic twinning rates by maternal age and parity. Further analysis of Italian data, 1949-1985, and rediscussion of US data, 1964-1985. Acta Genet Med Gemellol 39: 317–328.Google ScholarPubMed
3.Beiguelman, B (1995): “Dinâmica dos genes nas famílias e nas populações, 2a. ed.” Ribeirão Preto: Sociedade Brasileira de Genética 460 p.Google Scholar
4.Beiguelman, B, Villarroel-Herrera, HO (1993): Factors influencing the decline of twinning incidence in a southeastern Brazilian population. Rev Brasil Genet 16: 793–801.Google Scholar
5.Belitzki, R, Fescina, R, Ucieda, F (1978): Definiciones y terminologias aplicables al periodo perinatal. Recomendaciones de la Organización Mundial de la Salud y Modificaciones de la FIGO. Publicación Científica del CLAP 757: 136–147.Google Scholar
6.Bertranpetit, J, Marin, A (1988): Demographic parameters and twinning: a study in Catalonia, Spain. Acta Genet Med Gemellol 37: 127–135.Google ScholarPubMed
7.Bomsel-Helmreich, O, Papiernik-Berkhauer, E (1976): Delayed ovulation and monozygotic twinning. Acta Genet Med Gemellol 25: 73–76.Google Scholar
8.Brackenridge, CJ (1977): The secular variation of Australian twin births over fifty years. Ann Hum Biol 4: 559–564.Google Scholar
9.Bressers, WMA, Eriksson, AW, Kostense, PJ, Parisi, P (1987): Increasing trend in the monozy-gotic twinning rate. Acta Genet Med Gemellol 36: 397–408.Google ScholarPubMed
10.Bulmer, MG (1959): The effect of parental age, parity and duration of marriage on the twinning rate. Ann Hum Genet 23: 454–458.Google Scholar
11.Chen, CJ, Lin, TM, Chang, C, Cheng, YJ (1987): Epidemiological characteristics of twinning rates in Taiwan. Acta Genet Med Gemellol 36: 335–342.Google Scholar
12.Czeizel, A, Acsádi, G (1971): Demographic characteristics of multiple births in Hungary. Genet Med Gemellol 20: 301–313.CrossRefGoogle Scholar
13.Doherty, JDH, Lancaster, PAL (1986): The secular trend of twinning in Australia, 1853-1982. Acta Genet Med Gemellol 35: 61–76.Google Scholar
14.Elwood, JM (1973): Changes in the twinning rate in Canada 1926 -70. Brit J Prev Soc Med 27: 236–241.Google ScholarPubMed
15.Eriksson, AW, Fellman, J (1967): Twinning and legitimacy. Hereditas 57: 395–402.Google Scholar
16.Eriksson, AW, Fellman, J (1973): Differences in the twinning trends between Finns and Swedes. Am J Hum Genet 25: 141–151.Google Scholar
17.Hémon, D, Berger, C, Lazar, P (1981): Some observations concerning the decline of dizygotic twinning rate in France between 1901 and 1968. In Gedda, L, Parisi, P, Nance, WE (eds.) Twin Research 3: Twin Biology and Multiple Pregnancy. New York: Alan R. Liss 49–56.Google Scholar
18.Imaizumi, Y, Inouye, E (1979): Analysis of multiple birth rates in Japan. Acta Genet Med Gemellol 28: 107–124.Google ScholarPubMed
19.James, WH (1972): Secular changes in dizygotic twinning rates. J Biosoc Sci 4: 427–434.Google Scholar
20.James, WH (1975): The secular decline in dizygotic twinning rates in Italy. Acta Genet Med Gemellol 24: 9–14.Google Scholar
21.James, WH (1980): Secular changes in twinning rates in England and Wales. Ann Hum Biol 7: 485–487.CrossRefGoogle ScholarPubMed
22.James, WH (1982): Second survey of secular trends in twinning rates. J. Biosoc Sci 14: 481–497.Google Scholar
23.James, WH (1986): Recent secular trends in dizygotic twinning rates in Europe. J Biosoc Sci 18: 497–504.Google Scholar
24.Jeanneret, O, MacMahon, B (1962): Secular changes in rates of multiple births in the United States. Am J Hum Genet 14: 410–425.Google Scholar
25.Katsouyiannopoulos, V (1981): The falling twin rate in Greece. J Epidemiol Community Health 35: 218–219.Google Scholar
26.Krueger, J, Proping, P (1976): Twinning frequencies in Baden-Wurttenberg according to maternal age and parity from 1955 to 1972. Acta Genet Med Gemellol 25: 36–40.Google Scholar
27.de Moraes, MHB, Beiguelman, B, Krieger, H (1989): Decline of twinning rate in Brazil. Acta Genet Med Gemellol 38: 57–63.Google Scholar
28.Nielsen, J, Homma, A, Isaken, B, Bertelsen, A (1978): Incidence of twin births in Denmark from 1911-1974. Acta Genet Med Gemellol 27: 45–50.Google Scholar
29.Nylander, PPS (1981): The factors that influence twinning rates. Acta Genet Med Gemellol 30: 189–202.Google Scholar
30.Parisi, P, Caperna, G (1981): The changing incidence of twinning: one century of Italian statistics. In Gedda, L, Parisi, P, Nance, WE (eds.): Twin Research 3: Twin Biology and Multiple Pregnancy. New York: AR Liss, 35–48.Google Scholar
31.Parisi, P, Caperna, G (1982): Twinning rates, fertility, and industrialization: a secular study. In Bonné-Tamir, B (ed.): Human Genetics, Part A: The Unfolding Genome. New York: AR Li,ss, 375–394.Google Scholar
32.Picard, R, Fraser, D, Hagay, ZJ, Leiberman, JR (1989): Twinning in southern Israel; secular trends, ethnic variations and effects of maternal age and parity. Europ J Gynecol Reprod Biol 33: 131–139.Google Scholar
33.Pinkerton, GD, Carey, HM (1976): Post-pill anovulation. Med J Austr; 1: 220–222.CrossRefGoogle ScholarPubMed
34.Weinberg, W (1901): Beiträge zur Physiologie und Pathologie der Mehrlingsgeburten beim Menschen. Pflügers Arch f Ges Physiol 88: 346–430.CrossRefGoogle Scholar