title: Low-birthweight rates higher among Bangladeshi neonates measured during active birth surveillance compared to national survey data.
abstract: Birth size is an important gauge of fetal and neonatal health. Birth size measurements were collected within 72 h of life for 16 290 live born, singleton infants in rural Bangladesh from 2004 to 2007. Gestational age was calculated based on the date of last menstrual period. Newborns were classified as small-for-gestational age (SGA) based on a birthweight below the 10th percentile for gestational age, using three sets of US reference data. Birth size distributions were explored based on raw values as well as after z-score standardisation in reference to World Health Organization (WHO) 2006 growth standards. Mean (SD) birthweight (g), length (cm) and head circumference (cm) measurements, completed within [median (25th, 75th percentile)] 15 (8, 23) h of life, were 2433 (425), 46.4 (2.4) and 32.4 (1.6), respectively. Twenty-two per cent were born preterm. Over one-half (55.3%) of infants were born low birthweight; 46.6%, 37.0% and 33.6% had a weight, length and head circumference below -2 z-scores of the WHO growth standard at birth; and 70.9%, 72.2% and 59.8% were SGA for weight based on Alexander et al., Oken et al. and Olsen et al. references, respectively. Infants in this typical rural Bangladesh setting were commonly born small, reflecting a high burden of fetal growth restriction and preterm birth. Our findings, produced by active birth surveillance, suggest that low birthweight is far more common than suggested by cross-sectional survey estimates. Interventions that improve fetal growth during pregnancy may have the largest impact on reducing SGA rates.
authors: Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
authors: Rolf D W
authors: RD
authors: Klemm
authors: Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
authors: Rebecca D
authors: RD
authors: Merrill
authors: Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
authors: Lee
authors: L
authors: Wu
authors: JiVitA Project, Gaibandha, Bangladesh.
authors: Abu Ahmed
authors: AA
authors: Shamim
authors: JiVitA Project, Gaibandha, Bangladesh.
authors: Hasmot
authors: H
authors: Ali
authors: Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
authors: Alain
authors: A
authors: Labrique
authors: Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
authors: Parul
authors: P
authors: Christian
authors: Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
authors: Keith P
authors: KP
authors: West
mesh_terms: D000328:Adult; D001459:Bangladesh; D005260:Female; D006306:Health Surveys / Q000706:statistics & numerical data*; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age; D008297:Male; D011247:Pregnancy; D055815:Young Adult
keywords: birth; growth; intrauterine growth restriction; preterm birth; small-for-gestational age; weight
references: J Trop Pediatr. 1994 Apr;40(2):123
references: 8015031
references: Metabolism. 2003 Jan;52(1):13-8
references: 12524656
references: BMC Pediatr. 2003 Jul 8;3:6
references: 12848901
references: Int J Fertil Womens Med. 2006 May-Jun;51(3):116-24
references: 17039855
references: Pediatrics. 2010 Feb;125(2):e214-24
references: 20100760
references: N Engl J Med. 1985 Jan 10;312(2):82-90
references: 3880598
references: Eur J Clin Nutr. 1998 Jan;52 Suppl 1:S97-9
references: 9511026
references: Am J Clin Nutr. 2013 Jan;97(1):188-94
references: 23151532
references: Matern Child Nutr. 2015 Oct;11(4):583-94
references: 23647669
references: Am J Clin Nutr. 2000 Oct;72(4):1010-7
references: 11010945
references: J Nutr. 2003 May;133(5 Suppl 2):1747S-1756S
references: 12730494
references: Obstet Gynecol. 1996 Feb;87(2):163-8
references: 8559516
references: Eur J Clin Nutr. 2003 Jan;57(1):151-6
references: 12548310
references: JAMA. 2011 May 18;305(19):1986-95
references: 21586714
references: J Perinat Med. 1982;10(1):42-7
references: 7199572
references: J Nutr. 2005 May;135(5):1106-12
references: 15867289
references: Pediatrics. 1963 Nov;32:793-800
references: 14075621
references: Trials. 2011 Apr 21;12:102
references: 21510905
references: Pediatrics. 2008 Jul;122(1):e242-50
references: 18595969
references: Reprod Fertil Dev. 1995;7(3):539-47
references: 8606966
references: Nutr Rev. 2006 May;64(5 Pt 2):S50-1; discussion S72-91
references: 16770953
references: Bull World Health Organ. 2005 Mar;83(3):178-85
references: 15798841
references: J Epidemiol. 2011;21(5):354-62
references: 21768738
references: Int J Fertil Womens Med. 2006 May-Jun;51(3):106-15
references: 17039854
references: JAMA. 2000 Aug 16;284(7):843-9
references: 10938173
references: Pediatrics. 1966 Mar;37(3):403-8
references: 5906365