Exploring dental and medicine health expenditures in Iran: financial protection and inequality analysis

Abstract Background Healthcare systems must not only improve health outcomes but also protect individuals from financial hardship caused by healthcare costs. This study aimed to investigate financial protection and economic inequality in catastrophic dental healthcare expenditure (CDHE) and catastro...

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Main Authors: Satar Rezaei, Mohammad Ali Mohammadi Gharehghani, Sina Ahmadi
Format: Article
Language:English
Published: BMC 2025-03-01
Series:Journal of Health, Population and Nutrition
Subjects:
Online Access:https://doi.org/10.1186/s41043-025-00828-z
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author Satar Rezaei
Mohammad Ali Mohammadi Gharehghani
Sina Ahmadi
author_facet Satar Rezaei
Mohammad Ali Mohammadi Gharehghani
Sina Ahmadi
author_sort Satar Rezaei
collection DOAJ
description Abstract Background Healthcare systems must not only improve health outcomes but also protect individuals from financial hardship caused by healthcare costs. This study aimed to investigate financial protection and economic inequality in catastrophic dental healthcare expenditure (CDHE) and catastrophic medicine expenditure (CME) among the insured households through the Social Security Organization (SSO) in Iran. Method This cross-sectional study gathered data from 1679 insured households across 5 provinces, utilizing a multistage sampling approach. The prevalence of CDHE and CME was assessed by determining the proportion of households spending at least 40% of their capacity to pay on dental care and medications. Logistic regression analysis was used to identify the factors contributing to CDHE and CME. The concentration curve (CC) and concentration index (CI) were employed to visualize and quantify the extent of economic inequality in CDHE and CME. The CI was further decomposed to identify the primary factors driving the observed economic inequality in CDHE and CME. Findings The study found that 6.2% (95% confidence interval CI 5.1 to 7.4%) of households experienced CDHE and 4.9% (95% CI 4.0 to 6.0%) experienced CME. The CI for dental costs and medication costs were 0.248 (95% CI 0.115 to 0.381) and was 0.149 (95%CI 0.087 to 0.211), respectively, indicating that these costs were more concentrated among socioeconomically advantaged households. Conversely, the CI for CDHE and CME were −0.185 (95% CI −0.297 to −0.073) and −0.570 (95% CI −0.692 to −0.448), respectively, suggesting that these outcomes were more prevalent among poorer households. The decomposition analysis highlighted that the household wealth index explained 45.4% and 22.5% of the concentration of CDHE and CME among the poor, respectively. Conclusion The financial burden imposed by out-of-pocket (OOP) payments for dental care and medication was substantial among households insured by the SSO. Expanding insurance coverage for these services could significantly reduce OOP spending and the likelihood of health expenditures leading to poverty, particularly among lower-income households.
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spelling doaj-art-dabc6cabea2e4479a6d8e735cc5a66692025-08-20T03:40:44ZengBMCJournal of Health, Population and Nutrition2072-13152025-03-0144111310.1186/s41043-025-00828-zExploring dental and medicine health expenditures in Iran: financial protection and inequality analysisSatar Rezaei0Mohammad Ali Mohammadi Gharehghani1Sina Ahmadi2Research Center for Environmental Determinants of Health, Health Institute, Kermanshah University of Medical SciencesSocial Welfare Management Research Center, University of Social Welfare and Rehabilitation SciencesSocial Development and Health Promotion Research Center, Health Institute, Kermanshah University of Medical SciencesAbstract Background Healthcare systems must not only improve health outcomes but also protect individuals from financial hardship caused by healthcare costs. This study aimed to investigate financial protection and economic inequality in catastrophic dental healthcare expenditure (CDHE) and catastrophic medicine expenditure (CME) among the insured households through the Social Security Organization (SSO) in Iran. Method This cross-sectional study gathered data from 1679 insured households across 5 provinces, utilizing a multistage sampling approach. The prevalence of CDHE and CME was assessed by determining the proportion of households spending at least 40% of their capacity to pay on dental care and medications. Logistic regression analysis was used to identify the factors contributing to CDHE and CME. The concentration curve (CC) and concentration index (CI) were employed to visualize and quantify the extent of economic inequality in CDHE and CME. The CI was further decomposed to identify the primary factors driving the observed economic inequality in CDHE and CME. Findings The study found that 6.2% (95% confidence interval CI 5.1 to 7.4%) of households experienced CDHE and 4.9% (95% CI 4.0 to 6.0%) experienced CME. The CI for dental costs and medication costs were 0.248 (95% CI 0.115 to 0.381) and was 0.149 (95%CI 0.087 to 0.211), respectively, indicating that these costs were more concentrated among socioeconomically advantaged households. Conversely, the CI for CDHE and CME were −0.185 (95% CI −0.297 to −0.073) and −0.570 (95% CI −0.692 to −0.448), respectively, suggesting that these outcomes were more prevalent among poorer households. The decomposition analysis highlighted that the household wealth index explained 45.4% and 22.5% of the concentration of CDHE and CME among the poor, respectively. Conclusion The financial burden imposed by out-of-pocket (OOP) payments for dental care and medication was substantial among households insured by the SSO. Expanding insurance coverage for these services could significantly reduce OOP spending and the likelihood of health expenditures leading to poverty, particularly among lower-income households.https://doi.org/10.1186/s41043-025-00828-zCatastrophic costsDental careMedicationOut-of-pocket paymentsEconomic inequalityDecomposition
spellingShingle Satar Rezaei
Mohammad Ali Mohammadi Gharehghani
Sina Ahmadi
Exploring dental and medicine health expenditures in Iran: financial protection and inequality analysis
Journal of Health, Population and Nutrition
Catastrophic costs
Dental care
Medication
Out-of-pocket payments
Economic inequality
Decomposition
title Exploring dental and medicine health expenditures in Iran: financial protection and inequality analysis
title_full Exploring dental and medicine health expenditures in Iran: financial protection and inequality analysis
title_fullStr Exploring dental and medicine health expenditures in Iran: financial protection and inequality analysis
title_full_unstemmed Exploring dental and medicine health expenditures in Iran: financial protection and inequality analysis
title_short Exploring dental and medicine health expenditures in Iran: financial protection and inequality analysis
title_sort exploring dental and medicine health expenditures in iran financial protection and inequality analysis
topic Catastrophic costs
Dental care
Medication
Out-of-pocket payments
Economic inequality
Decomposition
url https://doi.org/10.1186/s41043-025-00828-z
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AT sinaahmadi exploringdentalandmedicinehealthexpendituresiniranfinancialprotectionandinequalityanalysis