Table 2.

Results of computational fluid dynamics analysis of OSA patients and control subjects during respiration, with gender and body mass index as covariates

Subject	OSA mean ± SD/median (interquartile range)	Control mean ± SD/median (interquartile range)	F	p
Maximum velocity during inspiration (m s–1)	7.1 ± 5.3	5.1 ± 1.4	1.24	0.31
Maximum wall shear stress during inspiration (Pa)	2.4 ± 2.3	2.4 ± 1.4	0.37	0.77
Minimum wall static pressure during inspiration (Pa)	−5.0 (-17.2,–3.4)	−5.7 (-7.4,–1.9)	1.21	0.31
Airway resistance during inspiration (Rin) (Pa/L/min)	1.2 (0.9, 2.5)	0.96 (0.69, 1.1)	1.95	0.13
Maximum velocity during expiration (m s–1)	7.7 ± 5.9	4.9 ± 2.7	2.27	0.09
Maximum wall shear stress during expiration (Pa)	1.26 (0.7, 3.3)	0.83 (0.6, 1.71)	2.25	0.09
Minimum wall static pressure during expiration (Pa)	−21.2 ± 34.3	−8.0 ± 11.3	2.37	0.08
Airway resistance during expiration (Rex) (Pa/L/min)	1.5 (0.7, 2.8)	0.73 (0.42, 1)	2.90	0.04 a

OSA, obstructive sleep apnea.

^ap < 0.05.