Low Birth Weight in Twins Versus Singletons: Separate Entities and Different Implications for Child Growth and Survival

Gedda, L; Brenci, G.; Gatti, I

doi:10.1017/s0001566000006589

Cited by 18 publications

(16 citation statements)

References 6 publications

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“…In contrast to the numerous reports on the gestational age and birth weight of singletons and twins (McKeown and Record, 1952;Powers, 1973;Gedda et al, 1981;Leroy et al, 1982;Watson and Campbell, 1986;Bonnelykke et al, 1987;Alfieri et al, 1987;Buckler and Buckler, 1987;Bleker et al, 1988;Keith 1994;Luke, 1996;Beiguelman et al, 1997), little is known of these traits in stillbirths and early neonatal deaths.…”

Section: Resultsmentioning

confidence: 94%

Perinatal mortality among twins and singletons in a city in southeastern Brazil, 1984-1996

Beiguelman

Franchi-Pinto

2000

Genet. Mol. Biol.

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Analysis of 116,699 deliveries (1062 twin pairs and 115,637 singletons) which occurred from 1984 to 1996 at the largest obstetric center in Campinas, SP, Brazil, provided the following conclusions: 1) despite the low percentage of twin births (0.9%), 10.7% of all early neonatal deaths and 3.5% of all stillbirths were twins. Compared to singletons, the likelihood of stillbirths and early neonatal deaths among twins was 1.9 and 6.5 times greater, respectively. 2) The proportion of twins among early neonatal deaths tended to decrease, probably because of improvements in prenatal and perinatal care.3) The critical period for early neonatal deaths in singletons and twins lasted for the three first days after birth. 4) The incidence of perinatal deaths among twins was highest among MM pairs, followed by FF pairs, and lowest among MF pairs. 5) There was a trend towards a decrease in the annual rate of early neonatal deaths among both singletons and twins, and of stillbirths among singletons, the latter being more conspicuous among females. 6) The sex ratio of singletons was practically stable among living newborns, but showed strong cyclic variation among early neonatal deaths, and a tendency to increase among stillbirths. Twins who died in the first week, as well as living twins showed a strong increase in their sex ratio from 1984 to 1996. 7) The mean gestational age of singletons was highest among living newborns followed by stillbirths, and was lowest among early neonatal deaths. The mean gestational age of living twins was higher than that of early neonatal deaths, but not different from that of stillbirths. 8) The mean birth weight of singletons and twins was highest among living newborns, followed by stillbirths, and lowest among early neonatal deaths. 9) Apgar scores ≥ 7 obtained five minutes after birth are inadequate as a reliable indicator of the clinical condition of the newborn, since almost half of the early neonatal deaths had 5-min Apgar scores varying from 7 to 10.

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Section: Resultsmentioning

confidence: 94%

Perinatal mortality among twins and singletons in a city in southeastern Brazil, 1984-1996

Beiguelman

Franchi-Pinto

2000

Genet. Mol. Biol.

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“…However, when looking at the twins' curves at 36-week gestational age, the curves from the populations of the three hospitals were practically the same, meaning that the etiology of prematurity and/or low birthweight in twins may be essentially mechanical, compared to singletons, where it is generally related to outer factors (Gedda et al, 1981). Only after 38-weeks gestational age did the three curves become different, reaching higher values according to the socioeconomic levels.…”

Section: Discussionmentioning

confidence: 94%

“…On average, twins are born with lower gestational age and lighter weight than singletons (Beiguelman et al, 1998;Bleker et al, 1988;Buckler & Buckler, 1987;Colletto et al, 2003;Gedda et al, 1981;Keith, 1994;Luke et al, 1991;Luke, 1996). When twins and singletons are distributed into three classes of birthweight (less than 1500g, between 1500 and 2500g, and more than 2500g), the proportion of newborns with low and very low birthweight is dramatically higher than that among singletons .…”

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confidence: 99%

Influence of Socioeconomic Levels on Birthweight of Twins and Singletons

Colletto¹,

Segre

Rielli

2004

Twin Res

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“…Buekens et al [1] reported that the prognosis of low-birth-weight twin infants is better than that of the same-birth-weight singleton infants. Thus, lowbirth-weight or small-for-gestational-age (SGA) in twin pregnancies should be studied based on the twin pregnancy standard [1,3]. However, few investagions have examined large-for-gestational-age (LGA) in twin pregnancies.…”

Section: Introductionmentioning

confidence: 99%

Incidence of neonatal hypoglycemia in large-for-gestational-age infants of dichorionic twin pregnancies

Suzuki

Yoneyama

Sawa

et al. 2000

Arch Gynecol Obstet

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The aim of this study was to estimate standards of large-for-gestational-age (LGA) infants of twin pregnancies based on the incidence of neonatal hypoglycemia. We examined 277 dichorionic twin infants (in 201 dichorionic twin pregnancies) who were delivered weighing > or = 2,500 g at 37-41 weeks of gestation. LGA in twin pregnancies was identified when the infant deviated > by 1.5SD from the mean gestational age of this study (LGA based on the twin pregnancy standard), or when the infant deviated by >1.5 SD of the intrauterine growth curve of Japanese (LGA based the singleton pregnancy standard). Using the twin pregnancy standard, the incidence of neonatal hypoglycemia in LGA twin infants was not measurably different from that in appropriate-for-gestational-age (AGA). However, using the singleton pregnancy standard, the incidence of neonatal hypoglycemia was significantly higher than that in AGA infants. In conclusion, LGA in twin pregnancies should be studied based on the singleton pregnancy standard to assess the incidence of neonatal hypoglycemia.

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Low Birth Weight in Twins Versus Singletons: Separate Entities and Different Implications for Child Growth and Survival

Cited by 18 publications

References 6 publications

Perinatal mortality among twins and singletons in a city in southeastern Brazil, 1984-1996

Perinatal mortality among twins and singletons in a city in southeastern Brazil, 1984-1996

Influence of Socioeconomic Levels on Birthweight of Twins and Singletons

Incidence of neonatal hypoglycemia in large-for-gestational-age infants of dichorionic twin pregnancies

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