Quintuple Pregnancy

Berbos, James N.; King, Bernard F.; Janusz, Albin

doi:10.1001/jama.1964.03060350039010

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1967

1994

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Cited by 21 publications

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“…Quintuplet pregnancies occur once in every 15 to 20 million births [3]. In Japan, four sets of quintuplets had been reported from 1901 to 1974 [2,5,6].…”

Section: Introductionmentioning

confidence: 99%

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Stillbirth Rate and Weight at Birth of Quintuplets in Japan

Imaizumi

1989

Acta genet. med. gemellol.: twin res.

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Nation-wide data in Japan on births and prenatal deaths of 16 sets of quintuplets during 1974-1985 were analysed. Among the 16 sets, 3 sets were liveborn, 8 were stillborn, and 5 were mixed, with a stillbirth rate of 0.64 (51/80). Effects of sex, maternal age and birth order on the stillbirth rate were not considered because of the small sample size. Effects of gestational age and birthweight on stillbirth rate were also examined. The mean weight of the 40 quintuplet individuals was 1,048 g.

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“…Quintuplet pregnancies occur once in every 15 to 20 million births [3]. In Japan, four sets of quintuplets had been reported from 1901 to 1974 [2,5,6].…”

Section: Introductionmentioning

confidence: 99%

“…In Japan, ovulation-inducing hormones have been used since 1966, and since January 1975 the use of HMG (human menopausal gonadotropin) has been covered by the health insurance system. Imaizumi [3] attributed the higher multiple birth rates since 1974 to the higher proportion of mothers treated with ovulation-inducing hormones.…”

Section: Introductionmentioning

confidence: 99%