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. 2021 Aug 9;34(8):801-809.
doi: 10.1093/ajh/hpab029.

Life Course Socioeconomic Position, Intergenerational Social Mobility, and Hypertension Incidence in ELSA-Brasil

José Aparecido Soares Lopes  1   2 , Luana Giatti  2 , Rosane Harter Griep  3 , Antonio Alberto da Silva Lopes  4 , Sheila Maria Alvim Matos  5 , Dora Chor  6 , Maria de Jesus M Fonseca  6 , Sandhi Maria Barreto  2
Affiliations

Life Course Socioeconomic Position, Intergenerational Social Mobility, and Hypertension Incidence in ELSA-Brasil

José Aparecido Soares Lopes et al. Am J Hypertens. .

Abstract

Background: Life course epidemiology is a powerful framework to unravel the role of socioeconomic position (SEP) disparities in hypertension (HTN). This study investigated whether life course SEP is associated with HTN incidence. Specifically, to test whether cumulative low SEP throughout life and unfavorable intergenerational social mobility increased HTN incidence.

Methods: Longitudinal analysis of 8,754 ELSA-Brasil participants without HTN or cardiovascular in visit 1 (2008-2010). The response variable was the incidence of HTN between visits 1 and 2 (2012-2014). The explanatory variables were childhood, youth, and adulthood SEP, cumulative low SEP, and intergenerational social mobility. Associations were estimated by incidence rate ratios (IRRs) obtained by generalized linear models, with Poisson distribution and logarithmic link function, after adjustment for sociodemographic, behavioral, and health factors.

Results: The incidence of HTN was 43.2/1,000 person-years, being higher in males, elderly (70-74 years), self-declared black, and low SEP individuals. After considering sociodemographic factors, low SEP in childhood, youth, and adulthood remained statistically associated with increased HTN incidence. Individuals in the third (IRR: 1.26; 95% confidence interval (CI): 1.11-1.44) and fourth top quartiles (IRR: 1.29; 95% CI: 1.11-1.49) of cumulative low SEP, vs. first, as well as those with low stable intergenerational trajectory (IRR: 1.29; 95% CI: 1.16-1.43), vs. high stable, also had increased HTN incidence rates.

Conclusions: Socioeconomic disparities at all phases of the life cycle appear to raise HTN incidence rates, being the individuals with greater accumulation of exposure to low SEP and with more unfavorable intergenerational mobility at greatest risk, even in a short follow-up time.

Keywords: ELSA-Brasil; blood pressure; hypertension; life course epidemiology; social mobility; socioeconomic position.

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