International Standards for Newborn Weight, Length, and Head Circumference by Gestational Age and Sex

2018 ◽  
Vol 5 (4) ◽  
pp. 1212
Author(s):  
Thinesh Kumar J. ◽  
Narayanan E. ◽  
Arasar Seeralar T.

Background: There is overestimation and underestimation of babies, the consequence being many AGA neonates labeled as SGA, and LGA neonates being overlooked and misinterpreted by using western based growth charts. So there is necessity to design Indian based growth charts for our babies. The objective is to construct gestational age and sex specific centile charts approximately for birth weight, length and head circumference for neonates born between 33 - 42 weeks of gestation and to compare with the other western growth charts.Methods: All babies were delivered in Institute of Obstetrics and Gynecology and nomograms for birth weight, head circumference and length of neonates were noted in time period between July 2016 and June 2017. Gestational age and sex specific smoothened centile curves were created for both sexes separately by Lamda Mu Sigma (LMS) method. Our new centile charts were compared with standard western growth charts.Results: Gestational age and sex specific raw and smoothened curves for birth weight, length and head circumference centiles were created from 8100 (4026 males, 4074 females) neonates. Female neonates were lighter than the male neonates. Birth weights of our Indian babies were lower with no change in length and head circumference centiles across all gestations.Conclusions: The growth charts designed in our study can be used as wide reference charts for birth weight, height and head circumference for Indian ethnic neonates for stratification of neonates into SGA, AGA and LGA unlike western charts, which extrapolates or misclassifies our neonates thereby minimizing unnecessary interventions and complications.


2012 ◽  
Vol 3 (5) ◽  
pp. 211-213
Author(s):  
Dhaval Gandhi ◽  
◽  
Rupesh Masand ◽  
Alok Purohit

PEDIATRICS ◽  
1992 ◽  
Vol 90 (3) ◽  
pp. 424-429
Author(s):  
Joseph M. Brandes ◽  
Joseph Itzkovits ◽  
Anat Scher ◽  
Miriam Sarid ◽  
Israel Thaler ◽  
...  

To assess the physical and mental development of infants born after in vitro fertilization (IVF), we performed a general physical and developmental examination (Bayley and Stanford-Binet scales) on a cohort of 116 IVF children, conceived and born at our institution between February 1985 and March 1989, and on 116 non-IVF matched controls. Study and control groups were each composed of 66 singletons, 19 pairs of twins and 4 sets of triplets, whose age at examination ranged from 12 to 45 months. The developmental indices of IVF infants were within the normal range and did not differ from those of their matched controls. The indices were positively correlated to gestational age, birth weight, head circumference at birth and at examination, and mother's education. Mean birth weight, gestational age, and birth weight percentile of IVF infants were lower than the mean of the healthy population. Mean percentiles of weight and length at examination (mean age 22.4 months) were equally low but did not differ from those of the matched controls. However, mean percentiles of head circumference at birth and at examination compare well with the normal mean, both in IVF and control groups. Twins and triplets (IVF and controls) had significantly lower physical and mental indices as compared to singletons.


PEDIATRICS ◽  
1965 ◽  
Vol 36 (1) ◽  
pp. 62-66
Author(s):  
Edward J. O'Connell ◽  
Robert H. Feldt ◽  
Gunnar B. Stickler

The purpose of this study was to re-affirm our clinical impression that non-institutionalized children whose head circumference was below minus 2 standard deviations were mentally subnormal and frequently had growth failure. A group of 134 children with a head circumference below minus 2 standard deviations from the mean were studied, and all but one were mentally subnormal. The most severe mental retardation was noted in the group of children with a head circumference of minus 4 standard deviations or below. We found, as have others, that children with mental retardation have height and weights below the expected norm and that children with a head circumference below minus 2 standard deviations have even lower mean heights and weights. The head circumference of 31 children with growth failure and normal intelligence was normal for age and sex, therefore disproving the concept that the abnormally small child has a proportionally small head. In the child with growth failure, should the head be proportionally small (below minus 2 standard deviations), mental subnormality should be suspected. We feel that the head circumference measurement has taken on new clinical significance in that our data support its use in suspecting the association of mental subnormality in children with growth failure and a head circumference of below minus 2 standard deviations from the mean for age and sex.


PEDIATRICS ◽  
1982 ◽  
Vol 69 (1) ◽  
pp. 130-130
Author(s):  
Evelyn Lipper ◽  
Kwang-sun Lee ◽  
Lawrence M. Gartner ◽  
Bruce Grellong

All of the infants entered into the study were low-birth-weight infants (<2,500 gm). The majority of infants had a gestational age less than 37 completed weeks, and, of these, some were also small for gestational age. Sixteen infants had a gestational age of ≥37 weeks but were included in the study because their birth weight was below the tenth percentile for their gestational age. We agree with Drs Knobloch and Malone's comment about the interrelationship of all three figures: as gastation advances, birth weight and head circumference increase.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Thomas A Miller ◽  
Victor Zak ◽  
Peter Shrader ◽  
Chitra Ravishankar ◽  
Victoria L Pemberton ◽  
...  

Poor somatic growth is common in infants with single ventricle (SV) physiology and has been linked to increased morbidity and impaired neurodevelopment. Asymmetry in somatic growth, a potential brain-sparing adaptation, is important in predicting outcomes in premature and small for gestational age (SGA) infants. Objectives: To assess variability in growth asymmetry and its associations with neurodevelopment in infants with SV. Methods: We analyzed growth asymmetry (weight for age z-score (WAZ) minus head circumference for age z-score (HCAZ)), relative head growth (change in cm/change in kg), HCAZ, and change in HCAZ from baseline to pre-Glenn in subjects prospectively enrolled in the Pediatric Heart Network Infant Single Ventricle (ISV) trial. Associations between these indices and results of the Psychomotor Developmental Index (PDI) and Mental Developmental Index (MDI) of the Bayley Scales of Infant Development-II (BSID) at 14 months were assessed. Results: Of the 230 patients enrolled in ISV, complete biometric data and BSID results were available in 168 (73%). For this cohort, age at enrollment was 21±9 days, age at pre-Glenn was 167±52 days, gestational age was 38.3±1.4 weeks, and 71% were male. Growth asymmetry varied across the cohort at enrollment (0.43 ±1.02, range -2.85 to 4.84) and the pre-Glenn visit (-0.23 ±1.21, range -4.45 to 3.00) as did the relative head growth (2.40±0.86, range 0.50 to 8.00). BSID scores were not associated with indices of growth asymmetry. In univariate analysis, larger pre-Glenn HCAZ correlated with higher MDI (r=0.21, p=0.006) and PDI (r=0.38, p<0.001) and greater increase in HCAZ from enrollment to pre-Glenn was associated with higher PDI (r=0.15, p=0.049). In multivariable modeling adjusting for site, serious adverse events, stage 1 length of stay, and height at 14 months, pre-Glenn HCAZ was an independent predictor of PDI (p=0.03), but not MDI. For each one unit Z-score increase in pre-Glenn HCAZ, the predicted PDI score increased by 2.5 points. Conclusions: In infants with SV, BSID scores were associated with pre-Glenn HCAZ but not with the degree of asymmetric growth. Future studies should explore why asymmetric growth that seems important in premature and SGA infants appears less relevant in infants with SV.


PEDIATRICS ◽  
1975 ◽  
Vol 56 (1) ◽  
pp. 74-77 ◽  
Author(s):  
Rowena Korobkin

Rapidly enlarging head circumference is a standard clinical sign of progressive hydrocephalus in an infant. Six neonates 29 to 36 weeks gestational age, with intraventricular hemorrhage, confirmed by ventricular tap, had head circumferences measured at intervals from birth. The sudden appearance of rapidly expanding head size, not associated with changing clinical status, occurred 9 to 20 days after the estimated time of hemorrhage in all of the infants. Air ventriculography within three days of abnormal acceleration of head circumference growth demonstrated moderately to severely dilated ventricles. The ventricles were probably enlarging slowing from the time of hemorrhage because there was no associated clinical deterioration in the infants coincident with the rapid increase in head circumference. After intraventncular hemorrhage, enlarging head circumference appears to be an insensitive sign of hydrocephalus in premature infants.


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