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Keywords

cortisol, alpha-amylase, sleep, depression, anxiety

Document Type

Research Studies

Abstract

Background: Symptoms of menopause include inadequate sleep, depression, and anxiety. Studies of healthy aging frequently use self-report tools that are unverified by objective measures.

Purpose: To investigate the correlation between self-report measures of sleep or affect and salivary biomarkers in a small (n=32) sample of post-menopausal women.

Methods: Salivary cortisol and a-amylase were quantified by laboratory tests. Self-report data included hours of sleep and Patient-Reported Outcomes Measurement Information System (PROMIS®) tools for sleep disturbance, anxiety, and depression. Correlation analyses were conducted between self-reported measures and biomarker concentrations.

Results: No statistically significant correlations were found between cortisol (a biomarker for stress), and PROMIS® T-scores standardized against a nationwide reference population for sleep disturbance (r=˗0.145;p=0.26), anxiety (r=˗0.047;p=0.72), depression (r=0.028;p=0.83), nor self-reported hours of sleep (r=˗0.009;p=0.94). Non-significant correlations were also obtained for a-amylase, a biomarker associated with quality of sleep, and sleep disturbance (r=0.221;p=0.08), anxiety (r=˗0.009;p=0.94), or depression (r=˗0.022;p=0.87) and hours of sleep (r=˗0.166;p=0.19). Significant correlations were observed between hours of sleep and sleep disturbance (r=0.517;pr=˗0.252;p=.048), and depression (r=0.321;p =0.012).

Conclusion: Self-report measures are poor proxies for objective biomarker data in this study, but expected correlations between self-report measures exist. Further study is needed with a larger and more diverse sample.

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