Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysis

BackgroundGiven the benefits of the Expanded Program on Immunisation (EPI) to Malawians’ health and, consequently, Malawi’s economic development, coverage and equity in immunisation are necessary to track. In the 2019–20 Malawi Multiple Indicator Cluster Survey (MICS), immunisation coverage of basic...

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Main Authors: Bridget Naphiyo, Jacob Mazalale, Gowokani Chijere Chirwa
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-04-01
Series:Frontiers in Public Health
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Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2025.1514635/full
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author Bridget Naphiyo
Jacob Mazalale
Gowokani Chijere Chirwa
Gowokani Chijere Chirwa
author_facet Bridget Naphiyo
Jacob Mazalale
Gowokani Chijere Chirwa
Gowokani Chijere Chirwa
author_sort Bridget Naphiyo
collection DOAJ
description BackgroundGiven the benefits of the Expanded Program on Immunisation (EPI) to Malawians’ health and, consequently, Malawi’s economic development, coverage and equity in immunisation are necessary to track. In the 2019–20 Malawi Multiple Indicator Cluster Survey (MICS), immunisation coverage of basic vaccines among 12-23-month-old children was at 72%. However, disaggregated immunisation coverage in some groups of children was below or above 72%. The disparities compelled the need to investigate the extent of socioeconomic inequalities drivers in child immunisation in Malawi.Study designThis study uses secondary data sets from three of Malawi’s national representative cross-sectional surveys: the Malawi MICS 2013–14, the Malawi MICS 2019–20 and the Malawi Service Provision Assessment (MSPA) 2013–14. The MSPA 2013–14 was used to estimate the shortest distance between a MICS 2019–20 cluster and a facility offering immunisation services.MethodsThe study utilized the concentration index to measure socioeconomic inequality and the Wagstaff decomposition to measure the marginal contributions of socioeconomic factors to inequality.ResultsThe study found no socioeconomic inequality in 2013, but pro-rich inequalities existed in 2019 (0.065 for basic immunisation, 0.09 for age-appropriate immunisation), statistically significant at p < 0.01. Wealth, maternal education and place of residence were significant factors contributing to the pro-rich inequalities in 2019.ConclusionThe results call for interventions that improve affordability and accessibility of vaccines and interventions that educate caregivers of the benefits of child immunisation to ensure equity. The results, therefore, suggest that to improve equality in health outcomes, the Government of Malawi needs to embrace wider policies that do not only address the consumption of healthcare services but also policies that affect socioeconomic determinants of health.
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spelling doaj-art-103876ad110d4489b967fbb4df11f7692025-08-20T03:17:28ZengFrontiers Media S.A.Frontiers in Public Health2296-25652025-04-011310.3389/fpubh.2025.15146351514635Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysisBridget Naphiyo0Jacob Mazalale1Gowokani Chijere Chirwa2Gowokani Chijere Chirwa3Department of Economics, School of Economics and Government, University of Malawi, Zomba, MalawiDepartment of Economics, School of Economics and Government, University of Malawi, Zomba, MalawiDepartment of Economics, School of Economics and Government, University of Malawi, Zomba, MalawiDepartment of Economics, North-West University, Potchefstroom, South AfricaBackgroundGiven the benefits of the Expanded Program on Immunisation (EPI) to Malawians’ health and, consequently, Malawi’s economic development, coverage and equity in immunisation are necessary to track. In the 2019–20 Malawi Multiple Indicator Cluster Survey (MICS), immunisation coverage of basic vaccines among 12-23-month-old children was at 72%. However, disaggregated immunisation coverage in some groups of children was below or above 72%. The disparities compelled the need to investigate the extent of socioeconomic inequalities drivers in child immunisation in Malawi.Study designThis study uses secondary data sets from three of Malawi’s national representative cross-sectional surveys: the Malawi MICS 2013–14, the Malawi MICS 2019–20 and the Malawi Service Provision Assessment (MSPA) 2013–14. The MSPA 2013–14 was used to estimate the shortest distance between a MICS 2019–20 cluster and a facility offering immunisation services.MethodsThe study utilized the concentration index to measure socioeconomic inequality and the Wagstaff decomposition to measure the marginal contributions of socioeconomic factors to inequality.ResultsThe study found no socioeconomic inequality in 2013, but pro-rich inequalities existed in 2019 (0.065 for basic immunisation, 0.09 for age-appropriate immunisation), statistically significant at p < 0.01. Wealth, maternal education and place of residence were significant factors contributing to the pro-rich inequalities in 2019.ConclusionThe results call for interventions that improve affordability and accessibility of vaccines and interventions that educate caregivers of the benefits of child immunisation to ensure equity. The results, therefore, suggest that to improve equality in health outcomes, the Government of Malawi needs to embrace wider policies that do not only address the consumption of healthcare services but also policies that affect socioeconomic determinants of health.https://www.frontiersin.org/articles/10.3389/fpubh.2025.1514635/fullchild immunisationconcentration indexsocioeconomic inequalityWagstaff decompositionMalawivaccines
spellingShingle Bridget Naphiyo
Jacob Mazalale
Gowokani Chijere Chirwa
Gowokani Chijere Chirwa
Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysis
Frontiers in Public Health
child immunisation
concentration index
socioeconomic inequality
Wagstaff decomposition
Malawi
vaccines
title Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysis
title_full Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysis
title_fullStr Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysis
title_full_unstemmed Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysis
title_short Socioeconomic inequalities in immunisation of 12–23 months old children in Malawi: a decomposition analysis
title_sort socioeconomic inequalities in immunisation of 12 23 months old children in malawi a decomposition analysis
topic child immunisation
concentration index
socioeconomic inequality
Wagstaff decomposition
Malawi
vaccines
url https://www.frontiersin.org/articles/10.3389/fpubh.2025.1514635/full
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