Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019

This study compared the distribution of stunting and height-for-age (HAZ) Z-scores among age groups in data from the Brazilian National Survey on Demography and Health of Women and Children (PNDS 2006) and the Brazilian National Survey on Child Nutrition (ENANI-2019). The final sample comprised 4,40...

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Main Authors: Inês Rugani Ribeiro de Castro, Dayana Rodrigues Farias, Talita Lelis Berti, Pedro Gomes Andrade, Luiz Antonio dos Anjos, Nadya Helena Alves-Santos, Elisa Maria de Aquino Lacerda, Maiara Brusco de Freitas, Gilberto Kac
Format: Article
Language:English
Published: Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz 2023-08-01
Series:Cadernos de Saúde Pública
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2023001406001&lng=en&tlng=en
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author Inês Rugani Ribeiro de Castro
Dayana Rodrigues Farias
Talita Lelis Berti
Pedro Gomes Andrade
Luiz Antonio dos Anjos
Nadya Helena Alves-Santos
Elisa Maria de Aquino Lacerda
Maiara Brusco de Freitas
Gilberto Kac
author_facet Inês Rugani Ribeiro de Castro
Dayana Rodrigues Farias
Talita Lelis Berti
Pedro Gomes Andrade
Luiz Antonio dos Anjos
Nadya Helena Alves-Santos
Elisa Maria de Aquino Lacerda
Maiara Brusco de Freitas
Gilberto Kac
author_sort Inês Rugani Ribeiro de Castro
collection DOAJ
description This study compared the distribution of stunting and height-for-age (HAZ) Z-scores among age groups in data from the Brazilian National Survey on Demography and Health of Women and Children (PNDS 2006) and the Brazilian National Survey on Child Nutrition (ENANI-2019). The final sample comprised 4,408 and 14,553 children < 59 months of age in the PNDS 2006 and ENANI-2019, respectively. Children with HAZ scores < -2 according to the World Health Organization (WHO) growth standard were classified as stunted. Prevalence, 95% confidence intervals (95%CI), means, and standard deviations were estimated for Brazil and according to age. The distribution of HAZ scores at each age (in months) was estimated using the svysmooth function of the R survey package. Analyses considered the complex sampling design of the studies. Statistical differences were determined by analyzing the 95%CI of the overlap of point estimates. From 2006 to 2019, the prevalence of stunting for children < 12 months of age increased from 4.7% to 9%. As expected, the smoothed curves showed a higher mean HAZ score for children < 24 months of age in 2006 than in 2019 with no overlap of 95%CI among children aged 6-12 months. For children ≥ 24 months of age, we observed a higher mean HAZ score in 2019. Although the prevalence of stunting among children < 59 months of age was similar between 2006 and 2019, mean HAZ scores among children ≥ 24 months of age increased, whereas the mean HAZ score among children < 24 months of age decreased. Considering the deterioration in living conditions and the potential impact of the COVID-19 pandemic, we expect a greater prevalence of stunting in Brazil in the near future.
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spelling doaj.art-70ad5f211a954e6fb15d7db05235e9c32023-08-29T07:46:44ZengEscola Nacional de Saúde Pública, Fundação Oswaldo CruzCadernos de Saúde Pública1678-44642023-08-0139suppl 210.1590/0102-311xen087222Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019Inês Rugani Ribeiro de Castrohttps://orcid.org/0000-0002-7479-4400Dayana Rodrigues Fariashttps://orcid.org/0000-0003-0278-8375Talita Lelis Bertihttps://orcid.org/0000-0003-1160-3512Pedro Gomes Andradehttps://orcid.org/0000-0002-3964-6787Luiz Antonio dos Anjoshttps://orcid.org/0000-0002-5257-6912Nadya Helena Alves-Santoshttps://orcid.org/0000-0002-0098-6047Elisa Maria de Aquino Lacerdahttps://orcid.org/0000-0002-1830-4278Maiara Brusco de Freitashttps://orcid.org/0000-0003-1737-8918Gilberto Kachttps://orcid.org/0000-0001-8603-9077This study compared the distribution of stunting and height-for-age (HAZ) Z-scores among age groups in data from the Brazilian National Survey on Demography and Health of Women and Children (PNDS 2006) and the Brazilian National Survey on Child Nutrition (ENANI-2019). The final sample comprised 4,408 and 14,553 children < 59 months of age in the PNDS 2006 and ENANI-2019, respectively. Children with HAZ scores < -2 according to the World Health Organization (WHO) growth standard were classified as stunted. Prevalence, 95% confidence intervals (95%CI), means, and standard deviations were estimated for Brazil and according to age. The distribution of HAZ scores at each age (in months) was estimated using the svysmooth function of the R survey package. Analyses considered the complex sampling design of the studies. Statistical differences were determined by analyzing the 95%CI of the overlap of point estimates. From 2006 to 2019, the prevalence of stunting for children < 12 months of age increased from 4.7% to 9%. As expected, the smoothed curves showed a higher mean HAZ score for children < 24 months of age in 2006 than in 2019 with no overlap of 95%CI among children aged 6-12 months. For children ≥ 24 months of age, we observed a higher mean HAZ score in 2019. Although the prevalence of stunting among children < 59 months of age was similar between 2006 and 2019, mean HAZ scores among children ≥ 24 months of age increased, whereas the mean HAZ score among children < 24 months of age decreased. Considering the deterioration in living conditions and the potential impact of the COVID-19 pandemic, we expect a greater prevalence of stunting in Brazil in the near future.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2023001406001&lng=en&tlng=enGrowthBody HeightChild NutritionNutritional StatusNutritional Surveys
spellingShingle Inês Rugani Ribeiro de Castro
Dayana Rodrigues Farias
Talita Lelis Berti
Pedro Gomes Andrade
Luiz Antonio dos Anjos
Nadya Helena Alves-Santos
Elisa Maria de Aquino Lacerda
Maiara Brusco de Freitas
Gilberto Kac
Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019
Cadernos de Saúde Pública
Growth
Body Height
Child Nutrition
Nutritional Status
Nutritional Surveys
title Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019
title_full Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019
title_fullStr Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019
title_full_unstemmed Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019
title_short Trends of height-for-age Z-scores according to age among Brazilian children under 5 years old from 2006 to 2019
title_sort trends of height for age z scores according to age among brazilian children under 5 years old from 2006 to 2019
topic Growth
Body Height
Child Nutrition
Nutritional Status
Nutritional Surveys
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2023001406001&lng=en&tlng=en
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