Sex-specific charts for abdominal circumference in term and near-term Caucasian newborns

Rodrı́guez, Gerardo; Samper, M. Pilar; Ventura, Purificación; Pérez-González, J

doi:10.1515/jpm.2008.077

Cited by 15 publications

(18 citation statements)

References 9 publications

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“…None of these studies excluded smokers or mothers with medical diseases, nor were the results stratified by maternal pregestational BMI, parity, age or height. The Danish neonates had higher mean birth AC values at 40 weeks of gestation than those reported from Spain and China; boys, +1.3 cm and +1.1 cm; girls, +1.4 cm and +1.2 cm, respectively. In Swedish term neonates, mean AC values were 2.0 cm, and 1.5 cm higher, compared with our values for 40 weeks of gestation, boys and girls, respectively .…”

Section: Discussioncontrasting

confidence: 58%

“…To our knowledge, the impact of maternal BMI on birth abdominal size has never been investigated on a population level. However, birth AC reference values have previously been reported based on small studies . None of these studies excluded smokers or mothers with medical diseases, nor were the results stratified by maternal pregestational BMI, parity, age or height.…”

Section: Discussionmentioning

confidence: 99%

“…However, birth AC reference values have previously been reported based on small studies. 28,29,43,44 None of these studies excluded smokers or mothers with medical diseases, nor were the results stratified by maternal pregestational BMI, parity, age or height. The Danish neonates had higher mean birth AC values at 40 weeks of gestation than those reported from Spain 28 and China 29 ; boys, +1.3 cm and +1.1 cm; girls, +1.4 cm and +1.2 cm, respectively.…”

Section: Reference Values For Acmentioning

confidence: 99%

“…Comparisons between studies are, however, hampered by the use of different measurement methods. We measured AC at the umbilicus level, whereas AC was measured at the mid-point between the xiphoid and umbilical cord in two studies 28,29 or at an unspecified position. 43 In accordance with our findings, fetal midabdominal diameter (MAD, measured in utero by ultrasound) has previously been correlated to maternal weight, smoking, parity and height.…”

Section: Reference Values For Acmentioning

confidence: 99%

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Pregestational body mass index is related to neonatal abdominal circumference at birth—a Danish population‐based study

Tanvig

Wehberg

Vinter

et al. 2012

BJOG

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Objectives To examine the impact of maternal pregestational body mass index (BMI) and smoking on neonatal abdominal circumference (AC) and weight at birth. To define reference curves for birth AC and weight in offspring of healthy, nonsmoking, normal weight women.Design Population-based study. Main outcome measures Birth AC and weight in relation to pregestational maternal BMI, maternal smoking and medical conditions (any).Results Birth AC and weight increased with increasing pregestational BMI, and decreased with smoking (P < 0.0001). Reference curves were created for offspring of healthy, nonsmoking mothers with normal pregestational BMI. Mean AC ranged from 30.1 cm and 30.2 cm at 35 weeks of gestation to 33.9 cm and 34.1 cm at 41 weeks of gestation, for girls and boys, respectively. Mean birthweight ranged from 2581 and 2666 g at 35 weeks to 3705 and 3852 g at 41 weeks of gestation for girls and boys, respectively. Pregestational BMI correlated more to the Z score of birthweight than to the Z score of AC (P < 0.0001).Conclusion Birth AC and weight are affected by maternal smoking status and pregestational BMI. Pregestational BMI correlated more to birthweight than to AC. Using data from healthy, nonsmoking mothers with normal pregestational BMI we have provided new reference curves for birth AC and birthweight.

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Section: Discussioncontrasting

confidence: 58%

Section: Discussionmentioning

confidence: 99%

Section: Reference Values For Acmentioning

confidence: 99%

Section: Reference Values For Acmentioning

confidence: 99%

See 2 more Smart Citations

Pregestational body mass index is related to neonatal abdominal circumference at birth—a Danish population‐based study

Tanvig

Wehberg

Vinter

et al. 2012

BJOG

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“…A recent study compared AC to gastric residuals to measure FI and suggested that AC use may be associated with a shorter time to full enteral feeding (11). AC reference values, however, are not available in very premature infants (12). Furthermore, the relationship between an increase in AC and the visual appearance of abdominal distention has never been studied.…”

Section: Introductionmentioning

confidence: 99%

Reference Values for Abdominal Circumference in Premature Infants

et al. 2020

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Objectives: Abdominal distention is a common indicator of feeding intolerance in premature newborns. In the absence of a precise definition, abdominal distention and its degree are highly subjective. The aim of this study was to construct references and smoothed percentiles for abdominal circumference (AC) and AC to head circumference (HC) ratio (AC/HC) in infants born between 24 weeks and 34 weeks of gestational age. Methods: ACs and HCs were collected weekly in eutrophic premature infants without congenital abdominal or cerebral malformation. AC and HC charts were modeled using the LMS method, excluding measures associated with abdominal distention at clinical examination or intracranial abnormality at cerebral ultrasounds. Changes in AC and AC/HC over time were studied by repeated-measures analysis using mixed-effects linear models. Results: A total of 1,605 measurements were made in 373 newborns with a mean gestational age of 31 [29-33] weeks and mean birth weight of 1,540 [1,160-1,968] g. Of these measurements, 1,220 were performed in normal conditions. Gestational age, postnatal age, singleton status, and respiratory support were significantly associated with AC and AC/HC. LMS curves were generated according to gestational age groups and postnatal age, with coherent profiles. AC/HC was 0.91 [0.86-0.95] in absence of abdominal distention. It was higher in cases of abdominal distention (0.95 [0.89-1.00], p < 0.001) and necrotizing enterocolitis (0.98 [0.93-1.07], p < 0.001). Conclusions: References constructed for AC and AC/HC might be used to assess feeding tolerance in premature infants. AC/HC was more relevant than AC to rationalize the diagnosis of abdominal distention.

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Association Between Maternal Caffeine Consumption and Metabolism and Neonatal Anthropometry

et al. 2021

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IMPORTANCE Higher caffeine consumption during pregnancy has been associated with lower birth weight. However, associations of caffeine consumption, based on both plasma concentrations of caffeine and its metabolites, and self-reported caffeinated beverage intake, with multiple measures of neonatal anthropometry, have yet to be examined. OBJECTIVE To evaluate the association between maternal caffeine intake and neonatal anthropometry, testing effect modification by fast or slow caffeine metabolism genotype. DESIGN, SETTING, AND PARTICIPANTSA longitudinal cohort study, the National Institute of Child Health and Human Development Fetal Growth Studies-Singletons, enrolled 2055 nonsmoking women at low risk for fetal growth abnormalities with complete information on caffeine consumption from 12 US clinical sites between 2009 and 2013. Secondary analysis was completed in 2020. EXPOSURES Caffeine was evaluated by both plasma concentrations of caffeine and paraxanthine and self-reported caffeinated beverage consumption measured/reported at 10-13 weeks gestation. Caffeine metabolism defined as fast or slow using genotype information from the single nucleotide variant rs762551 (CYP1A2*1F). MAIN OUTCOMES AND MEASURES Neonatal anthropometric measures, including birth weight, length, and head, abdominal, arm, and thigh circumferences, skin fold and fat mass measures. The β coefficients represent the change in neonatal anthropometric measure per SD change in exposure. RESULTS A total of 2055 participants had a mean (SD) age of 28.3 (5.5) years, mean (SD) body mass index of 23.6 (3.0), and 580 (28.2%) were Hispanic, 562 (27.4%) were White, 518 (25.2%) were Black, and 395 (19.2%) were Asian/Pacific Islander. Delivery occurred at a mean (SD) of 39.2 (1.7) gestational weeks. Compared with the first quartile of plasma caffeine level (Յ28 ng/mL), neonates of women in the fourth quartile (>659 ng/mL) had lower birth weight (β = −84.3 g; 95% CI, −145.9to −22.6 g; P = .04 for trend), length (β = −0.44 cm; 95% CI, −0.78 to −0.12 cm; P = .04 for trend), and head (β = −0.28 cm; 95% CI, −0.47 to −0.09 cm; P < .001 for trend), arm (β = −0.25 cm; 95% CI, −0.41 to −0.09 cm: P = .02 for trend), and thigh (β = −0.29 cm; 95% CI, −0.58 to −0.04 cm; P = .07 for trend) circumference. Similar reductions were observed for paraxanthine quartiles, and for continuous measures of caffeine and paraxanthine concentrations. Compared with women who reported drinking no caffeinated beverages, women who consumed approximately 50 mg per day (~1/2 cup of coffee) had neonates with lower birth weight (β = −66 g; 95% CI, −121 to −10 g), smaller arm (β = −0.17 cm; 95% CI, −0.31 to −0.02 cm) and thigh (β = −0.32 cm; 95% CI, −0.55 to −0.09 cm) (continued) Key Points Question Is maternal caffeine intake associated with neonatal anthropometry? Findings In this cohort study of 2055 women from 12 clinical sites, measures of caffeine consumption (plasma caffeine and paraxanthine and selfreported consumption) were associated with neonatal size at birth. Increasing caffeine m...

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Sex-specific charts for abdominal circumference in term and near-term Caucasian newborns

Abstract: Sex-specific references constructed for AC in term and near-term Caucasian newborns might be used, as other anthropometric parameters, in the assessment of nutritional status at birth.

Cited by 15 publications

References 9 publications

Pregestational body mass index is related to neonatal abdominal circumference at birth—a Danish population‐based study

Pregestational body mass index is related to neonatal abdominal circumference at birth—a Danish population‐based study

Reference Values for Abdominal Circumference in Premature Infants

Association Between Maternal Caffeine Consumption and Metabolism and Neonatal Anthropometry

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