. 2020 Sep 23;10:15528. doi: 10.1038/s41598-020-72481-x

Table 2.

Anthropometric and sleep parameters related with active TGF-β1 serum levels in the non-obese and obese OSA patients.

	Non-obese OSA patients			Obese OSA patients
	r	95%CI	p	r	95%CI	p
Age (years)	0.013	− 0.168 to 0.193	0.887	0.301	0.053 to 0.514	0.018
BMI (Kg m⁻²)	0.020	− 0.161 to 0.200	0.828	− 0.029	− 0.279 to 0.224	0.825
Neck circumference (cm)	− 0.055	− 0.233 to 0.127	0.555	0.203	− 0.051 to 0.433	0.116
ESS	− 0.145	− 0.317 to 0.037	0.116	0.105	− 0.151 to 0.348	0.420
AHI (h⁻¹)	0.241	0.063 to 0.404	0.008	0.225	− 0.028 to 0.451	0.081
DI (h⁻¹)	0.215	0.036 to 0.381	0.025	0.059	− 0.196 to 0.306	0.651
Mean nocturnal SpO₂ (%)	− 0.102	− 0.278 to 0.080	0.273	− 0.007	− 0.258 to 0.245	0.956
Low nocturnal SpO₂ (%)	− 0.236	− 0.400 to − 0.058	0.014	− 0.067	− 0.314 to 0.188	0.605
tSpO₂ < 90% (%)	0.208	0.028 to 0.375	0.045	0.085	− 0.170 to 0.330	0.512
Leptin serum levels (ng mL⁻¹)	0.206	0.026 to 0.373	0.025	0.413	0.180 to 0.602	0.001

BMI body mass index; ESS Epworth sleepiness score; AHI apnea–hypopnea index; DI desaturation index; SpO₂ oxygen saturation; tSpO₂ < 90% night time spent with oxygen saturation < 90%; r Spearman correlation coefficient; CI confidence interval.