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Salivary cortisol for monitoring circadian rhythm variation in adrenal activity during shiftwork
Using saliva cortisol to track daily hormone changes in adrenal activity during shift work
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Abstract
Salivary cortisol levels were found to be 3.1%-3.3% of serum total cortisol over a 2-day period during shiftwork.
- Salivary cortisol levels varied significantly among different shifts and subjects.
- The circadian profiles of salivary cortisol mirrored those of serum total cortisol during evening and night shifts.
- No significant time lag or difference in magnitude was observed between salivary and serum cortisol during the shifts.
- Cosinor analysis confirmed the alignment of salivary cortisol with serum cortisol patterns.
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