. 2022 Jul 13;31(6):e13698. doi: 10.1111/jsr.13698

TABLE 2.

Significant differences in R2* among obstructive sleep apnea groups. Findings are s⁻¹ and are presented as adjusted mean ± standard error. Data were analysed by analysis of covariance using R2* as the dependent variable and obstructive sleep apnea groups as independent variable. Models are adjusted for age, time between polysomnography and MRI, sex, body mass index, diabetes, dyslipidaemia, hypertension, smoking, and continuous positive airway pressure treatment

	No OSA	Mild OSA	Moderate OSA	Severe OSA	p
	n = 241 (31.2%)	n = 286 (37.0%)	n = 164 (21.2%)	n = 82 (10.6%)	p
L superior frontal gyrus	17.91 ± 0.12	17.95 ± 0.12	17.94 ± 0.12	18.36 ± 0.13 ^a ^, ^b ^, ^c	0.003
L orbital gyri	17.44 ± 0.10	17.50 ± 0.10	17.43 ± 0.10	17.81 ± 0.11 ^a ^, ^b ^, ^c	0.002
R middle temporal gyrus	17.88 ± 0.12	18.02 ± 0.12	18.02 ± 0.12	18.35 ± 0.14 ^a ^, ^b ^, ^c	0.004
L middle temporal gyrus	21.22 ± 0.20	21.44 ± 0.19	21.54 ± 0.19	22.15 ± 0.22 ^a ^, ^b ^, ^c	<0.001
L angular gyrus	19.60 ± 0.15	19.78 ± 0.15	19.77 ± 0.15	20.24 ± 0.17 ^a ^, ^b ^, ^c	0.001
L supramarginal gyrus	19.94 ± 0.14	20.09 ± 0.14	20.07 ± 0.14	20.50 ± 0.16 ^a ^, ^b ^, ^c	0.003
R cuneus	20.19 ± 0.14	20.36 ± 0.14	20.55 ± 0.14 ^a	20.84 ± 0.16 ^a ^, ^b	<0.001

Note: Bold text indicates p <0.005.

Abbreviations: L, left; R, right.

^{^a}

Significant difference compared with no OSA group.

^{^b}

Significant difference compared with mild OSA group.

^{^c}

Significant difference compared with moderate OSA group.