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Research Article

Seasonal variation in cortisol biomarkers in Hispanic mothers living in an agricultural region

, , , , , , , , & show all
Pages 299-305 | Received 13 Mar 2015, Accepted 18 May 2015, Published online: 31 Aug 2015
 

Abstract

Context: Characterization of stress exposure requires understanding seasonal variability in stress biomarkers.

Objective: To compare acute and chronic stress biomarkers between two seasons in a cohort of rural, Hispanic mothers.

Methods: Stress questionnaires and cortisol measurements (hair, blood and saliva) were collected in the summer and fall.

Results: Cortisol biomarkers were significantly different and stress questionnaires were significantly correlated between seasons.

Discussion: The variability in cortisol and relative stability of questionnaires between seasons may indicate that cortisol responds to subtle stressors not addressed in questionnaires.

Conclusions: There are significant differences in stress biomarkers in our cohort between seasons.

Declaration of interest

The authors have no conflicts of interest to declare. This study was supported through the National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services (Contract No. HHSN267200700015C and HHSN267200700023C), the National Institute of Environmental Health Sciences (Award Numbers 5 P01 ES00960, 5 P30 ES0070331) and the USEPA (Grant Number RD83451401). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute of Environmental Health Sciences, the National Institutes of Health or the USEPA.

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