. Author manuscript; available in PMC: 2020 Mar 24.

Published in final edited form as: Eur J Clin Invest. 2014 May;44(5):493–500. doi: 10.1111/eci.12263

Table 3.

Salivary cortisol levels across subgroups based on parent-reported insomnia symptoms and objective sleep duration

	Controls with normal sleep duration	Controls with short sleep duration	Insomnia symptoms with normal sleep duration	Insomnia symptoms with short sleep duration
n	137	110	38	42
Evening, μg/dL	0·28 ± 0·02	0·28 ± 0·02	0·23 ± 0·03	0·33 ± 0·03^*
Morning, μg/dL	1·10 ± 0·04	1·13 ± 0·04	1·13 ± 0·08	1·38 ± 0·08^, ^*

Values are mean ± standard error of the mean (SEM) adjusted for gender, age, race, waist circumference.

AHI, anxiety and depression, and sampling weight.

P < 0·05 between insomnia symptoms with short sleep duration and insomnia symptoms with normal sleep duration.

^**

P < 0·01 between insomnia symptoms with short sleep duration and controls with normal or short sleep duration.