Irisin Is Correlated with Blood Pressure in Obstructive Sleep Apnea Patients

Table 2

Correlation analysis between different parameters in the OSA patients.

	Irisin (ng/ml)		SBP (mmHg)		DBP (mmHg)		AHI (events/h)
	r	value	r	value	r	value	r	value
BMI	0.652	≤0.001	0.633	≤0.001	0.580	≤0.001	0.722	≤0.001
NC	0.488	≤0.001	0.603	≤0.001	0.532	≤0.001	0.629	≤0.001
WC/HC	0.516	≤0.001	0.497	≤0.001	0.378	≤0.001	0.463	≤0.001
AHI (events/h)	0.635	≤0.001	0.701	≤0.001	0.620	≤0.001	—	—
ESS	0.406	≤0.001	0.318	0.007	0.313	0.007	0.494	≤0.001
SpO2 nadir	−0.450	≤0.001	−0.562	≤0.001	−0.506	≤0.001	−0.837	≤0.001
SBP (mmHg)	0.518	≤0.001	—	—	—	—	0.701	≤0.001
DBP (mmHg)	0.442	≤0.001	—	—	—	—	0.620	≤0.001

AHI, apnea-hypopnea index; BMI, body mass index; NC, neck circumference; WC/HC, waist circumference/hip circumference; ESS, Epworth Sleepiness Scale; SpO₂, peripheral capillary oxygen saturation; SBP, systolic BP; DBP, diastolic BP.