The levels of testosterone secretion during the post-awakening period in men
Description
The levels of testosterone secretion during the post-awakening period were determined in saliva samples collected from adult men (aged 24-80 years). The participants of this study can be classified into two subgroups based on their CARi (CARi = Cortisol levels at 30 min after awakening - Cortisol levels immediately upon awakening ) . Typical CAR (i.e., CARi > 2.5 nmol/L) was observed in 155 participants (participants exhibiting typical CAR). No typical CAR, either less than a 2.5 nmol/L increase or the complete absence of a post-awakening increase (i.e., negative CAR), was found in 70 participants (participants exhibiting no typical CAR).
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Steps to reproduce
The data sheet contains demographic variables (age and BMI), each AMS item scores, cortisol and testosterone level determined in saliva samples collected immediately upon awakening (0 min) and 30 and 60 min after awakening. Auxiliary indices could be adopted to analyze HPA and HPG axis functions. The total secretion of testosterone and cortisol (Taucawk and CARauc, respectively) during the post-awakening period can be calculated as the area under the curve with respect to the baseline, from the time point immediately after awakening (0 min) to 60 min after awakening. An increase in cortisol level within the first 30 min after awakening (CARi) can be calculated (CARi = cortisol concentrations at 30 min post-awakening - cortisol concentrations immediately upon awakening), and an increase in testosterone levels during the post-awakening period (T-Inc) can also be calculated (T-Inc = testosterone levels at 30 min after awakening (or at 60 min, if testosterone levels were higher at 60 min than at 30 min after awakening) – testosterone levels immediately upon awakening)). The correlations between demographic variables and AMS scores and steroid levels can be assessed using Spearman's correlation anaysis.