Effect of personality traits on socioeconomic inequalities in health, a populationābased study
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Date
2023
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Zakershahrak, M.
Brennan, D.
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Journal article
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Community Dentistry and Oral Epidemiology, 2023; 51(5):1009-1016
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Mehrsa Zakershahrak, David Brennan
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Abstract
Objectives: This study aimed to estimate the effects of positive personality traits (PTs) in income and self-rated dental and general health (SRDH and SRGH) associations in a large South Australian sample. Methods: Cross-sectional analyses were conducted using self-reported data collected from 3578 adults (2015ā2016). Multivariable regression models assessed the main effects and interactions of the Ten-Item Personality Inventory (TIPI) and income with SRDH and SRGH. Prevalence ratios (PR) of poor health ratings were estimated using Poisson regression. Results: Among all respondents, high-income individuals with stronger Conscientiousness scores had the lowest prevalence of poor SRGH (0.8%), while those with stronger Extraversion (2.9%) and Agreeableness scores (3.4%) had the lowest prevalence of poor SRDH. Poor SRGH was related to weak Conscientiousness (PR = 6.9, 95% CI [2.3ā20.8]) and Emotional Stability scores (PR = 6.0, 95% CI [2.0ā18.3]), while poor SRDH was associated with weak Extraversion (PR = 2.3, 95% CI [1.2ā4.5]), Agreeableness (PR = 1.8, 95% CI [1.0ā3.2]) and Conscientiousness scores (PR = 2.1, 95% CI [1.1ā4.0]). Among low-income people, poor health ratings were less prevalent in those with stronger positive PTs scores versus weaker scores. Among low-income respondents, poor SRGH was lower in individuals with stronger versus weaker Conscientiousness scores (10.9% vs 16.2%), and poor SRDH showed lower prevalence in participants with stronger versus weaker Agreeableness scores (18.1% vs 22.6%). Conclusion: Findings showed the association between PTs and the prevalence of poor SRDH and SRGH. Stronger positive PTs modified the self-rated health inequalities associated with low income in a representative sample of the South Australian population.
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First published: 23 November 2022
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Ā© 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.