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

Published in final edited form as: Eur Respir J. 2015 Nov 5;47(2):531–540. doi: 10.1183/13993003.00319-2015

TABLE 2.

Cortisol levels in sleep apnoea patients versus controls at baseline

	Controls	Apnoeics	p-value
Subjects	37	35
Model A
Cortisol 24-h μg·mL⁻¹	7.39±0.16	7.87±0.17	0.04
Cortisol night-time μg·mL⁻¹	7.10±0.21	7.99±0.22	<0.01
Cortisol daytime μg·mL⁻¹	7.56±0.23	7.80±0.23	0.48
Model B
Cortisol 24-h μg·mL⁻¹	7.23±0.17	8.06±0.17	<0.01
Cortisol night-time μg·mL⁻¹	6.85±0.21	8.29±0.24	<0.01
Cortisol daytime μg·mL⁻¹	7.46±0.24	7.91±0.23	0.20

Data are presented as n or estimated mean±se after adjustment for the following factors. Model A: unadjusted values, and fixed factors added in the model group and group-by-time. Model B: fixed factors in the model for cortisol: group (controls versus apnoeics), gender and time as well as their interactions, age, body mass index, anxiety (log Beck Anxiety Inventory), depression (log Beck Depression Inventory II), and smoking.