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Research paper
Published: 01.12.2020.
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https://doi.org/10.5937/afmnai38-29970

Is correlation between plasma and salivary cortisol levels an important indicator of stress?: A meta-analysis study

By
Burcu Köksal
Burcu Köksal
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Abstract

The purpose of this study was to examine the practical importance of the correlation values between plasma and salivary cortisol levels using meta-analysis study. In this way, researchers focusing on cortisol levels in different individuals can use more systemic, practical and reliable evidence than using just salivary or plasma cortisol levels separately. For this purpose, correlational studies from 2000 up to now were collected and analyzed by meta-analysis. Results based on 18 effect sizes (n = 743) revealed that effect sizes of the correlations between plasma and salivary cortisol levels represented large effects. The overall combined effect size (Hedges's = 1.55) also represented a large effect. This finding indicates the practical importance of the correlation values for stress studies. The use of the correlation values for examining the cortisol levels in stress studies will be discussed in detail.

References

1.
Lippi G, De Vita F, Salvagno GL, Gelati M, Montagnana M, Guidi GC. Measurement of morning saliva cortisol in athletes. Clinical Biochemistry. 2009;42(9):904–6.

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Vol 38, Issue 4, 2021
Inequalities in the education of midwives in Europe Review on home care recommendations for patients with suspected COVID-19 presenting with mild symptoms Common mistakes in the choice of topical agents for emergency care of burns: Experimental study Positive effects of a four-week rehabilitation spa program on quality of life in patients with ankylosing spondylitis Is correlation between plasma and salivary cortisol levels an important indicator of stress?: A meta-analysis study See full issue
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