National and regional estimates of term and preterm babies born small for gestational age in 138 low-income and middle-income countries in 2010

Background National estimates for the numbers of babies born small for gestational age and the comorbidity with preterm birth are unavailable. We aimed to estimate the prevalence of term and preterm babies born small for gestational age (term-SGA and preterm-SGA), and the relation to low birthweight (al Survey on Maternal and Perinatal Health (23 countries) were used to model the prevalence of term-SGA births. Prevalence of preterm-SGA infants was calculated from meta-analyses. Findings In 2010, an estimated 32·4 million infants were born small for gestational age in low-income and middle-income countries (27% of livebirths), of whom 10·6 million infants were born at term and low birthweight. The prevalence of term-SGA babies ranged from 5·3% of livebirths in east Asia to 41·5% in south Asia, and the prevalence of preterm-SGA infants ranged from 1·2% in north Africa to 3·0% in southeast Asia. Of 18 million low-birthweight babies, 59% were term-SGA and 41% were preterm. Two-thirds of small-for-gestational-age infants were born in Asia (17·4 million in south Asia). Preterm-SGA babies totalled 2·8 million births in low-income and middle-income countries. Most small-for-gestational-age infants were born in India, Pakistan, Nigeria, and Bangladesh. Interpretation The burden of small-for-gestational-age births is very high in countries of low and middle income and is concentrated in south Asia. Implementation of effective interventions for babies born too small or too soon is an urgent priority to increase survival and reduce disability, stunting, and non-communicable diseases.
Research areas:
Year:
2013
Type of Publication:
Article
Journal:
Lancet Glob Health
Volume:
1
Number:
1
Pages:
e26-36
Month:
July
DOI:
10.1016/S2214-109X(13)70006-8
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The Zvitambo Institute for Maternal and Child Health Research is a multidisciplinary Zimbabwean organization that has developed and attracted expertise in various areas of biomedical and applied research and programming in the areas of maternal health, child health and growth, immunology, HIV/AIDS, nutrition, food security and livelihoods, WASH and counseling

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