Association of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohort

Abstract Background Socioeconomic status (SES) and education influence medication use, but their effects at both individual and community levels remain poorly understood. This study investigates the association between medication count and polypharmacy with SES and education at both levels. Methods...

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Main Authors: Mohammadreza Akbari, Hossein Poustchi, Erfan Taherifard, Seyed Reza Abdipour Mehrian, Zahra Rahimian, Bita Mesgarpour, Farhad Pourfarzi, Afshin Gharekhani, Azim Nejatizadeh, Farhad Moradpour, Elahe Piraie, Bahareh Fakhraei, Farahnaz Joukar, Nader Saki, Ali Reza Safarpour, Mehdi Moradinazar, Abbas Rezaianzadeh, Mohsen Tafaghodi, Ali Esmaeili-Nadimi, Alireza Moslem, Moluk Hadi Alijanvand, Mahmood Moosazadeh, Amir Houshang Mehrparvar, Alireza Ansari-Moghaddam, Ehsan Taherifard, SaharNaz Ghahramani, Mahsa Pakroo, Zahra Mohammadi, Reza Malekzadeh, Hossein Molavi Vardanjani
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Language:English
Published: BMC 2025-05-01
Series:BMC Public Health
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Online Access:https://doi.org/10.1186/s12889-025-23062-y
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author Mohammadreza Akbari
Hossein Poustchi
Erfan Taherifard
Seyed Reza Abdipour Mehrian
Zahra Rahimian
Bita Mesgarpour
Farhad Pourfarzi
Afshin Gharekhani
Azim Nejatizadeh
Farhad Moradpour
Elahe Piraie
Bahareh Fakhraei
Farahnaz Joukar
Nader Saki
Ali Reza Safarpour
Mehdi Moradinazar
Abbas Rezaianzadeh
Mohsen Tafaghodi
Ali Esmaeili-Nadimi
Alireza Moslem
Moluk Hadi Alijanvand
Mahmood Moosazadeh
Amir Houshang Mehrparvar
Alireza Ansari-Moghaddam
Ehsan Taherifard
SaharNaz Ghahramani
Mahsa Pakroo
Zahra Mohammadi
Reza Malekzadeh
Hossein Molavi Vardanjani
author_facet Mohammadreza Akbari
Hossein Poustchi
Erfan Taherifard
Seyed Reza Abdipour Mehrian
Zahra Rahimian
Bita Mesgarpour
Farhad Pourfarzi
Afshin Gharekhani
Azim Nejatizadeh
Farhad Moradpour
Elahe Piraie
Bahareh Fakhraei
Farahnaz Joukar
Nader Saki
Ali Reza Safarpour
Mehdi Moradinazar
Abbas Rezaianzadeh
Mohsen Tafaghodi
Ali Esmaeili-Nadimi
Alireza Moslem
Moluk Hadi Alijanvand
Mahmood Moosazadeh
Amir Houshang Mehrparvar
Alireza Ansari-Moghaddam
Ehsan Taherifard
SaharNaz Ghahramani
Mahsa Pakroo
Zahra Mohammadi
Reza Malekzadeh
Hossein Molavi Vardanjani
author_sort Mohammadreza Akbari
collection DOAJ
description Abstract Background Socioeconomic status (SES) and education influence medication use, but their effects at both individual and community levels remain poorly understood. This study investigates the association between medication count and polypharmacy with SES and education at both levels. Methods We used data from the Prospective Epidemiological Research Studies in IrAN (PERSIAN), comprising 163,770 individuals aged 35–70 from 18 sites in Iran. Individual SES was evaluated using asset analysis, while community SES was determined based on the prevalence of low SES individuals in each site. Individual education level was dichotomized into having at least 5 years of schooling or not, while community education level was determined by the frequency of individuals with high education level in each site. Multi-level Poisson regressions, were conducted to explore the association between these variables and medication count in this cross-sectional study. Results Approximately 45% of participants used at least one medication, with an average of 1.32 medications per person. Polypharmacy was observed in 8.85% of the population. Higher individual SES was associated with a slightly increased medication count (PR 1.05; 95% CI: 1.02–1.08) and a modest increase in polypharmacy risk (PR 1.08; 95% CI: 1.03–1.14). Residing in middle-SES communities was linked to lower medication use (PR 0.88; 95% CI: 0.85–0.91) but was not significantly associated with polypharmacy. Higher individual education was associated with reduced medication count (PR 0.92; 95% CI: 0.88–0.96) and a lower likelihood of polypharmacy (PR 0.85; 95% CI: 0.79–0.91). However, living in highly educated communities was associated with increased medication count (PR 1.70; 95% CI: 1.62–1.78) and a higher risk of polypharmacy (PR 1.81; 95% CI: 1.16–2.81). The models were adjusted for age, gender, residence, ethnicity, marital status, body mass index, physical activity level, smoking status, opium use, hookah use, and alcohol consumption. Conclusion Higher education was associated with lower medication use, whereas living in more educated communities was linked to higher usage. Although the association between individual SES and medication use was relatively weak, residing in middle-SES communities was associated with lower medication usage. These findings show the importance of addressing community-level factors in health research and policymaking.
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spelling doaj-art-2707dafbde0743b79d9ca09887e21d482025-08-20T02:29:27ZengBMCBMC Public Health1471-24582025-05-0125111310.1186/s12889-025-23062-yAssociation of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohortMohammadreza Akbari0Hossein Poustchi1Erfan Taherifard2Seyed Reza Abdipour Mehrian3Zahra Rahimian4Bita Mesgarpour5Farhad Pourfarzi6Afshin Gharekhani7Azim Nejatizadeh8Farhad Moradpour9Elahe Piraie10Bahareh Fakhraei11Farahnaz Joukar12Nader Saki13Ali Reza Safarpour14Mehdi Moradinazar15Abbas Rezaianzadeh16Mohsen Tafaghodi17Ali Esmaeili-Nadimi18Alireza Moslem19Moluk Hadi Alijanvand20Mahmood Moosazadeh21Amir Houshang Mehrparvar22Alireza Ansari-Moghaddam23Ehsan Taherifard24SaharNaz Ghahramani25Mahsa Pakroo26Zahra Mohammadi27Reza Malekzadeh28Hossein Molavi Vardanjani29Nephro-Urology Research Center, Shiraz University of Medical SciencesLiver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical SciencesMPH Department, School of Medicine, Shiraz University of Medical SciencesHealth Policy Research Center, Institute of Health, Shiraz University of Medical SciencesMPH Department, School of Medicine, Shiraz University of Medical SciencesNational Institute for Medical Research Development (NIMAD)Digestive Disease Research Center, Ardabil University of Medical SciencesLiver and Gastrointestinal Diseases Research Center, Tabriz University of Medical SciencesMolecular Medicine Research Center, Hormozgan University of Medical SciencesSocial Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical SciencesSocial Determinants of Health Research Center, Yasuj University of Medical SciencesNon-Communicable Diseases Research Center, Fasa University of Medical SciencesGastrointestinal and Liver Diseases Research Center, Guilan University of Medical SciencesHearing Research Center, Clinical Sciences Research Institute, Department of Otolaryngology, Head and Neck Surgery, Ahvaz Jundishapur University of Medical SciencesGastroenterohepatology Research Center, Shiraz University of Medical SciencesSocial Development & Health Promotion Research Center, Health Institute, Kermanshah University of Medical SciencesColorectal Research Center, Shiraz University of Medical SciencesNanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical SciencesNon-Communicable Diseases Research Center, Rafsanjan University of Medical SciencesNon-Communicable Diseases Research Center, Sabzevar University of Medical SciencesModeling in Health Research Center, Shahrekord University of Medical SciencesGastrointestinal Cancer Research Center, Non-Communicable Diseases Institute, Mazandaran University of Medical SciencesIndustrial Diseases Research Center, Shahid Sadoughi University of Medical SciencesHealth Promotion Research Center, Zahedan University of Medical SciencesStudent Research Committee, Shiraz University of Medical SciencesMPH Department, School of Medicine, Shiraz University of Medical SciencesMPH Department, School of Medicine, Shiraz University of Medical SciencesLiver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical SciencesLiver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical SciencesMD-MPH Department, School of Medicine, Research Center for Traditional Medicine and History of Medicine, Shiraz University of Medical SciencesAbstract Background Socioeconomic status (SES) and education influence medication use, but their effects at both individual and community levels remain poorly understood. This study investigates the association between medication count and polypharmacy with SES and education at both levels. Methods We used data from the Prospective Epidemiological Research Studies in IrAN (PERSIAN), comprising 163,770 individuals aged 35–70 from 18 sites in Iran. Individual SES was evaluated using asset analysis, while community SES was determined based on the prevalence of low SES individuals in each site. Individual education level was dichotomized into having at least 5 years of schooling or not, while community education level was determined by the frequency of individuals with high education level in each site. Multi-level Poisson regressions, were conducted to explore the association between these variables and medication count in this cross-sectional study. Results Approximately 45% of participants used at least one medication, with an average of 1.32 medications per person. Polypharmacy was observed in 8.85% of the population. Higher individual SES was associated with a slightly increased medication count (PR 1.05; 95% CI: 1.02–1.08) and a modest increase in polypharmacy risk (PR 1.08; 95% CI: 1.03–1.14). Residing in middle-SES communities was linked to lower medication use (PR 0.88; 95% CI: 0.85–0.91) but was not significantly associated with polypharmacy. Higher individual education was associated with reduced medication count (PR 0.92; 95% CI: 0.88–0.96) and a lower likelihood of polypharmacy (PR 0.85; 95% CI: 0.79–0.91). However, living in highly educated communities was associated with increased medication count (PR 1.70; 95% CI: 1.62–1.78) and a higher risk of polypharmacy (PR 1.81; 95% CI: 1.16–2.81). The models were adjusted for age, gender, residence, ethnicity, marital status, body mass index, physical activity level, smoking status, opium use, hookah use, and alcohol consumption. Conclusion Higher education was associated with lower medication use, whereas living in more educated communities was linked to higher usage. Although the association between individual SES and medication use was relatively weak, residing in middle-SES communities was associated with lower medication usage. These findings show the importance of addressing community-level factors in health research and policymaking.https://doi.org/10.1186/s12889-025-23062-yCommunity-level factorsHealth disparitiesMedication usePolypharmacyPERSIANMultilevel analysis
spellingShingle Mohammadreza Akbari
Hossein Poustchi
Erfan Taherifard
Seyed Reza Abdipour Mehrian
Zahra Rahimian
Bita Mesgarpour
Farhad Pourfarzi
Afshin Gharekhani
Azim Nejatizadeh
Farhad Moradpour
Elahe Piraie
Bahareh Fakhraei
Farahnaz Joukar
Nader Saki
Ali Reza Safarpour
Mehdi Moradinazar
Abbas Rezaianzadeh
Mohsen Tafaghodi
Ali Esmaeili-Nadimi
Alireza Moslem
Moluk Hadi Alijanvand
Mahmood Moosazadeh
Amir Houshang Mehrparvar
Alireza Ansari-Moghaddam
Ehsan Taherifard
SaharNaz Ghahramani
Mahsa Pakroo
Zahra Mohammadi
Reza Malekzadeh
Hossein Molavi Vardanjani
Association of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohort
BMC Public Health
Community-level factors
Health disparities
Medication use
Polypharmacy
PERSIAN
Multilevel analysis
title Association of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohort
title_full Association of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohort
title_fullStr Association of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohort
title_full_unstemmed Association of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohort
title_short Association of individual and community-level socioeconomic status and education with medication use: a multilevel analysis in the PERSIAN cohort
title_sort association of individual and community level socioeconomic status and education with medication use a multilevel analysis in the persian cohort
topic Community-level factors
Health disparities
Medication use
Polypharmacy
PERSIAN
Multilevel analysis
url https://doi.org/10.1186/s12889-025-23062-y
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