Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income Countries

Despite advances in scaling up new vaccines in low- and middle-income countries, the global number of unvaccinated children has remained high over the past decade. We used 2000–2019 household survey data from 154 surveys representing 89 low- and middle-income countries to assess within-country, econ...

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Main Authors: Nicole Bergen, Bianca O. Cata-Preta, Anne Schlotheuber, Thiago M. Santos, M. Carolina Danovaro-Holliday, Tewodaj Mengistu, Samir V. Sodha, Daniel R. Hogan, Aluisio J. D. Barros, Ahmad Reza Hosseinpoor
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Vaccines
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Online Access:https://www.mdpi.com/2076-393X/10/4/633
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author Nicole Bergen
Bianca O. Cata-Preta
Anne Schlotheuber
Thiago M. Santos
M. Carolina Danovaro-Holliday
Tewodaj Mengistu
Samir V. Sodha
Daniel R. Hogan
Aluisio J. D. Barros
Ahmad Reza Hosseinpoor
author_facet Nicole Bergen
Bianca O. Cata-Preta
Anne Schlotheuber
Thiago M. Santos
M. Carolina Danovaro-Holliday
Tewodaj Mengistu
Samir V. Sodha
Daniel R. Hogan
Aluisio J. D. Barros
Ahmad Reza Hosseinpoor
author_sort Nicole Bergen
collection DOAJ
description Despite advances in scaling up new vaccines in low- and middle-income countries, the global number of unvaccinated children has remained high over the past decade. We used 2000–2019 household survey data from 154 surveys representing 89 low- and middle-income countries to assess within-country, economic-related inequality in the prevalence of one-year-old children with zero doses of diphtheria–tetanus–pertussis (DTP) vaccine. Zero-dose DTP prevalence data were disaggregated by household wealth quintile. Difference, ratio, slope index of inequality, concentration index, and excess change measures were calculated to assess the latest situation and change over time, by country income grouping for 17 countries with high zero-dose DTP numbers and prevalence. Across 89 countries, the median prevalence of zero-dose DTP was 7.6%. Within-country inequalities mostly favored the richest quintile, with 19 of 89 countries reporting a rich–poor gap of ≥20.0 percentage points. Low-income countries had higher inequality than lower–middle-income countries and upper–middle-income countries (difference between the median prevalence in the poorest and richest quintiles: 14.4, 8.9, and 2.7 percentage points, respectively). Zero-dose DTP prevalence among the poorest households of low-income countries declined between 2000 and 2009 and between 2010 and 2019, yet economic-related inequality remained high in many countries. Widespread economic-related inequalities in zero-dose DTP prevalence are particularly pronounced in low-income countries and have remained high over the previous decade.
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spelling doaj.art-edc99afcb8e64e368863c4192257d3462023-12-01T21:31:22ZengMDPI AGVaccines2076-393X2022-04-0110463310.3390/vaccines10040633Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income CountriesNicole Bergen0Bianca O. Cata-Preta1Anne Schlotheuber2Thiago M. Santos3M. Carolina Danovaro-Holliday4Tewodaj Mengistu5Samir V. Sodha6Daniel R. Hogan7Aluisio J. D. Barros8Ahmad Reza Hosseinpoor9Department of Data and Analytics, World Health Organization, 20 Avenue Appia, 1211 Geneva, SwitzerlandInternational Center for Equity in Health, Federal University of Pelotas, Rua Mal Deodoro 1160, Pelotas 96020-220, BrazilDepartment of Data and Analytics, World Health Organization, 20 Avenue Appia, 1211 Geneva, SwitzerlandInternational Center for Equity in Health, Federal University of Pelotas, Rua Mal Deodoro 1160, Pelotas 96020-220, BrazilDepartment of Immunization, Vaccines and Biologicals, World Health Organization, 20 Avenue Appia, 1211 Geneva, SwitzerlandGavi, The Vaccine Alliance, 40 Chemin du Pommier, 1218 Geneva, SwitzerlandDepartment of Immunization, Vaccines and Biologicals, World Health Organization, 20 Avenue Appia, 1211 Geneva, SwitzerlandGavi, The Vaccine Alliance, 40 Chemin du Pommier, 1218 Geneva, SwitzerlandInternational Center for Equity in Health, Federal University of Pelotas, Rua Mal Deodoro 1160, Pelotas 96020-220, BrazilDepartment of Data and Analytics, World Health Organization, 20 Avenue Appia, 1211 Geneva, SwitzerlandDespite advances in scaling up new vaccines in low- and middle-income countries, the global number of unvaccinated children has remained high over the past decade. We used 2000–2019 household survey data from 154 surveys representing 89 low- and middle-income countries to assess within-country, economic-related inequality in the prevalence of one-year-old children with zero doses of diphtheria–tetanus–pertussis (DTP) vaccine. Zero-dose DTP prevalence data were disaggregated by household wealth quintile. Difference, ratio, slope index of inequality, concentration index, and excess change measures were calculated to assess the latest situation and change over time, by country income grouping for 17 countries with high zero-dose DTP numbers and prevalence. Across 89 countries, the median prevalence of zero-dose DTP was 7.6%. Within-country inequalities mostly favored the richest quintile, with 19 of 89 countries reporting a rich–poor gap of ≥20.0 percentage points. Low-income countries had higher inequality than lower–middle-income countries and upper–middle-income countries (difference between the median prevalence in the poorest and richest quintiles: 14.4, 8.9, and 2.7 percentage points, respectively). Zero-dose DTP prevalence among the poorest households of low-income countries declined between 2000 and 2009 and between 2010 and 2019, yet economic-related inequality remained high in many countries. Widespread economic-related inequalities in zero-dose DTP prevalence are particularly pronounced in low-income countries and have remained high over the previous decade.https://www.mdpi.com/2076-393X/10/4/633inequalitysocioeconomic factorsvaccinationimmunizationglobal healthdiphtheria–tetanus–pertussis (DTP) vaccine
spellingShingle Nicole Bergen
Bianca O. Cata-Preta
Anne Schlotheuber
Thiago M. Santos
M. Carolina Danovaro-Holliday
Tewodaj Mengistu
Samir V. Sodha
Daniel R. Hogan
Aluisio J. D. Barros
Ahmad Reza Hosseinpoor
Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income Countries
Vaccines
inequality
socioeconomic factors
vaccination
immunization
global health
diphtheria–tetanus–pertussis (DTP) vaccine
title Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income Countries
title_full Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income Countries
title_fullStr Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income Countries
title_full_unstemmed Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income Countries
title_short Economic-Related Inequalities in Zero-Dose Children: A Study of Non-Receipt of Diphtheria–Tetanus–Pertussis Immunization Using Household Health Survey Data from 89 Low- and Middle-Income Countries
title_sort economic related inequalities in zero dose children a study of non receipt of diphtheria tetanus pertussis immunization using household health survey data from 89 low and middle income countries
topic inequality
socioeconomic factors
vaccination
immunization
global health
diphtheria–tetanus–pertussis (DTP) vaccine
url https://www.mdpi.com/2076-393X/10/4/633
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