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.
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.
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