Elizabeth A Lundeen1, Jere R Behrman2, Benjamin T Crookston3, Kirk A Dearden4, Patrice Engle5, Andreas Georgiadis6, Mary E Penny7, Aryeh D Stein8. 1. 1Nutrition and Health Sciences,Graduate Division of Biological and Biomedical Sciences,Emory University,Atlanta,GA,USA. 2. 2Economics,Sociology and Population Studies Center,University of Pennsylvania,Philadelphia,PA,USA. 3. 3Department of Health Science,Brigham Young University,Provo,UT,USA. 4. 4Department of International Health and Center for Global Health and Development,Boston University,Boston,MA,USA. 5. 6Department of Psychology and Child Development,Cal Poly State University,San Luis Obispo,CA,USA. 6. 7Young Lives Study,Department of International Development,University of Oxford,Oxford,UK. 7. 8Instituto de Investigación Nutricional,Lima,Peru and Massachusetts General Hospital for Children,Harvard Medical School,Boston,MA,USA. 8. 9Hubert Department of Global Health and Department of Epidemiology,Rollins School of Public Health,Emory University,Mailstop 1518-002-7BB,Atlanta,GA 30322,USA.
Abstract
OBJECTIVE: We characterized post-infancy child growth patterns and determined the incidence of becoming stunted and of recovery from stunting. DESIGN: Data came from Young Lives, a longitudinal study of childhood poverty in four low- and middle-income countries. SETTING: We analysed length/height measurements for children at ages 1, 5 and 8 years. SUBJECTS: Children (n 7171) in Ethiopia, India, Peru and Vietnam. RESULTS: Mean height-for-age Z-score (HAZ) at age 1 year ranged from -1·51 (Ethiopia) to -1·08 (Vietnam). From age 1 to 5 years, mean HAZ increased by 0·27 in Ethiopia (P < 0·001) and decreased among the other cohorts (range: -0·19 (Peru) to -0·32 (India); all P < 0·001). From 5 to 8 years, mean HAZ increased in all cohorts (range: 0·19 (India) to 0·38 (Peru); all P < 0·001). Prevalence of stunting (HAZ<-2·0) at 1 year ranged from 21 % (Vietnam) to 46 % (Ethiopia). From age 1 to 5 years, stunting prevalence decreased by 15·1 percentage points in Ethiopia (P < 0·001) and increased in the other cohorts (range: 3·0 percentage points (Vietnam) to 5·3 percentage points (India); all P ≤ 0·001). From 5 to 8 years, stunting prevalence decreased in all cohorts (range: 5·0 percentage points (Vietnam) to 12·7 percentage points (Peru); all P < 0·001). The incidence of becoming stunted between ages 1 to 5 years ranged from 11 % (Vietnam) to 22 % (India); between ages 5 to 8 years, it ranged from 3 % (Peru) to 6 % (India and Ethiopia). The incidence of recovery from stunting between ages 1 and 5 years ranged from 27 % (Vietnam) to 53 % (Ethiopia); between ages 5 and 8 years, it ranged from 30 % (India) to 47 % (Ethiopia). CONCLUSIONS: We found substantial recovery from early stunting among children in four low- and middle-income countries.
OBJECTIVE: We characterized post-infancy child growth patterns and determined the incidence of becoming stunted and of recovery from stunting. DESIGN: Data came from Young Lives, a longitudinal study of childhood poverty in four low- and middle-income countries. SETTING: We analysed length/height measurements for children at ages 1, 5 and 8 years. SUBJECTS:Children (n 7171) in Ethiopia, India, Peru and Vietnam. RESULTS: Mean height-for-age Z-score (HAZ) at age 1 year ranged from -1·51 (Ethiopia) to -1·08 (Vietnam). From age 1 to 5 years, mean HAZ increased by 0·27 in Ethiopia (P < 0·001) and decreased among the other cohorts (range: -0·19 (Peru) to -0·32 (India); all P < 0·001). From 5 to 8 years, mean HAZ increased in all cohorts (range: 0·19 (India) to 0·38 (Peru); all P < 0·001). Prevalence of stunting (HAZ<-2·0) at 1 year ranged from 21 % (Vietnam) to 46 % (Ethiopia). From age 1 to 5 years, stunting prevalence decreased by 15·1 percentage points in Ethiopia (P < 0·001) and increased in the other cohorts (range: 3·0 percentage points (Vietnam) to 5·3 percentage points (India); all P ≤ 0·001). From 5 to 8 years, stunting prevalence decreased in all cohorts (range: 5·0 percentage points (Vietnam) to 12·7 percentage points (Peru); all P < 0·001). The incidence of becoming stunted between ages 1 to 5 years ranged from 11 % (Vietnam) to 22 % (India); between ages 5 to 8 years, it ranged from 3 % (Peru) to 6 % (India and Ethiopia). The incidence of recovery from stunting between ages 1 and 5 years ranged from 27 % (Vietnam) to 53 % (Ethiopia); between ages 5 and 8 years, it ranged from 30 % (India) to 47 % (Ethiopia). CONCLUSIONS: We found substantial recovery from early stunting among children in four low- and middle-income countries.
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