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Disentangling effects of socioeconomic status on obesity: A cross-sectional study of the Spanish adult population

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  • Merino Ventosa, María
  • Urbanos-Garrido, Rosa M.maria.merino.ven@gmail.com

Abstract

This paper complements previous estimations regarding socioeconomic inequalities in obesity for Spanish adults, and provides new evidence about the mechanisms through which socioeconomic status (SES) affects obesity. Microdata from the Spanish National Health Survey (SNHS) 2011–2012 are analysed. Corrected concentration indices (CCI) are calculated to measure inequality. Path analysis is employed to disentangle direct and indirect effects of SES on obesity, where dietary patterns, physical activity and sleep habits act as mediator variables. Multivariate logistic models are used to select those exogenous variables to be included in the path diagram. Men and women are analysed separately. Our results show significant pro-rich inequality in the distribution of obesity (the poorer the more obese), particularly for women (CCI=−0.070 for men, CCI=−0.079 for women). The indirect effects of SES on obesity (those transmitted via mediator variables) are quite modest (3.3% for males, 2.4% for females) due to three reasons. Firstly, dietary habits do not show a significant mediating effect. Secondly, the mediating effect of physical activity in leisure time, although significant (14% for males, 11.1% for females), is offset by that related to main activity. Finally, sleep habits contribution to total effect of SES on obesity is statistically significant but small (roughly 1%). Our results indicate that promoting physical activity in leisure time for those with a low SES, particularly for men, would contribute to prevent obesity and to reduce health inequalities. Promotion of adequate sleep habits for women with a low SES might have a similar effect. However, interventions aimed to reduce sedentarism related to main activity, although useful to prevent obesity, would amplify the obesity socioeconomic gradient. Since effects of SES are different for men and women, socioeconomic health inequalities should be addressed also from a gender perspective.

Suggested Citation

  • Merino Ventosa, María & Urbanos-Garrido, Rosa M.maria.merino.ven@gmail.com, 2016. "Disentangling effects of socioeconomic status on obesity: A cross-sectional study of the Spanish adult population," Economics & Human Biology, Elsevier, vol. 22(C), pages 216-224.
    • Handle: RePEc:eee:ehbiol:v:22:y:2016:i:c:p:216-224
    DOI: 10.1016/j.ehb.2016.05.004
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    References listed on IDEAS

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    Cited by:

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    2. Peng Nie & Andrew E. Clarck & Conchita D'Ambrosio & Lanlin Ding, 2020. "Income-related health inequality in urban China (1991-2015): The role of homeownership and housing conditions," Working Papers 524, ECINEQ, Society for the Study of Economic Inequality.
    3. Antelo, Manel & Magdalena, Pilar & Reboredo, Juan C., 2017. "Obesity: A major problem for Spanish minors," Economics & Human Biology, Elsevier, vol. 24(C), pages 61-73.
    4. Otilia Vanessa Cordero-Ahiman & Eduardo Santellano-Estrada & Alberto Garrido, 2018. "Food Access and Coping Strategies Adopted by Households to Fight Hunger among Indigenous Communities of Sierra Tarahumara in Mexico," Sustainability, MDPI, vol. 10(2), pages 1-14, February.
    5. Triaca, Lívia Madeira & dos Santos, Anderson Moreira Aristides & Tejada, Cesar Augusto Oviedo, 2020. "Socioeconomic inequalities in obesity in Brazil," Economics & Human Biology, Elsevier, vol. 39(C).
    6. Pasqualini, M. & Lanari, D. & Minelli, L. & Pieroni, L. & Salmasi, L., 2017. "Health and income inequalities in Europe: What is the role of circumstances?," Economics & Human Biology, Elsevier, vol. 26(C), pages 164-173.
    7. Aránzazu Hernández-Yumar & Maria Wemrell & Ignacio Abásolo Alessón & Beatriz González López-Valcárcel & George Leckie & Juan Merlo, 2018. "Socioeconomic differences in body mass index in Spain: An intersectional multilevel analysis of individual heterogeneity and discriminatory accuracy," PLOS ONE, Public Library of Science, vol. 13(12), pages 1-23, December.

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