Reference birth‐length range for multiple‐birth neonates in Japan

Abstract

The birth length of twins was smaller than that of singletons, but the difference was smaller than the difference in birthweight between twins and singletons.

Does birth weight discordance in preterm twins affect neonatal outcome?

“…Since discordant twins might be Appropriate for Gestational Age (AGA)/Small for Gestational Age (SGA), AGA/AGA or AGA/Large for Gestational Age (LGA), the intrauterine growth status of every twin in discordant group was defined as AGA, LGA or SGA according to Kato's growth charts. 8 For every twin pair, obstetric complications such as pre-eclampsia, diabetes mellitus, chronic hypertension, premature rupture of membranes (>18 h before birth) were recorded. Maternal age younger than 18 and older than 35 and use of artificial fertilization techniques (ovulation induction, intrauterine sperm injection etc.)…”

Human Placenta as a Biomarker of Environmental Toxins Exposure – Long-Term Morphochemical Monitoring

“…According to many reports (Bleker et al, 1979;Kato, 2004), the average birth weight of boys is usually slightly higher than the birth weight of girls in a healthy population. Studies of the Carpathian newborns (low polluted control material) for over 18 years, showed no statistically significant differences between the birth weight of boys and girls (3490 ± 58.2; n = 108 vs 3443 ± 64.4; n = 119 respectively).…”

Assessment of Twin Pregnancy and Neonatal Outcome in Tertiary Care Center, Kims, Karad

“…In the study by Kato et al 18 the mean birth weight of twin pregnancies was also lower: 2,590 gm for the first twin and 2,560 for second twin. The difference between weight of newborns may reflect the difference in quality of perinatal care and consequently the mean age on delivery and fetal growth retardation.…”