Table 2. Correlation coefficients of CT_LFA in all participants and separately in males, and females.

	All participants	Males	Females
Age, y	0.26 ‡	0.25 ‡	0.27 †
BMI, kg/m2	-0.61 ‡	-0.63 ‡	-0.58 ‡
Neck circumference, cm	-0.41 ‡	-0.35 ‡	-0.55 ‡
Waist circumference, cm	-0.55 ‡	-0.54 ‡	-0.56 ‡
Systolic blood pressure, mm Hg	-0.17 †	-0.17 †	-0.20
Diastolic blood pressure, mm Hg	-0.22 ‡	-0.21 †	-0.27 †
Alcohol intake, g/d	-0.02	-0.02	0.16
§ Use of lipid-lowering agents	-0.05	-0.13 *	0.12
§ Current smoking	-0.12 *	-0.12	-0.08
VFA, cm2	-0.49 ‡	-0.49 ‡	-0.53 ‡
SFA, cm2	-0.49 ‡	-0.59 ‡	-0.43 ‡
AHI, h-1	-0.21 ‡	-0.29 ‡	-0.01
4%ODI, h-1	-0.24 ‡	-0.29 ‡	-0.09
%T90, %	-0.26 ‡	-0.31 ‡	-0.11
Lowest SpO2 during sleep, %	0.13 †	0.20 †	-0.05
Arousal Index, h-1	-0.03	-0.04	0.03
REM sleep, %	-0.03	0.04	-0.18
AHI during REM, h-1	-0.22	-0.33 ‡	0.04
Supine sleep time, %	0.12 *	0.06	0.28 †
AHI in supine position, h-1	-0.21 ‡	-0.27 ‡	-0.05
Epworth sleepiness scale score	-0.17 †	-0.16 †	-0.16
CRP, mg/dL	-0.30 ‡	-0.28 ‡	-0.34 †
Triglycerides, mg/dL	-0.41 ‡	-0.42 ‡	-0.44 ‡
HDL-cholesterol, mg/dL	0.36 ‡	0.38 ‡	0.33 †
LDL-cholesterol, mg/dL	-0.13 †	-0.16 †	-0.06
Fasting plasma glucose, mg/dL	-0.22 ‡	-0.22 †	-0.23 *
HOMA-IR	-0.40 ‡	-0.44 ‡	-0.35 †

^*P <0.10

^†P <0.05

^‡P <0.001, which indicate variables entered into the multivariate regression analyses.

^§Correlation coefficients of these variables are indicated by Spearman's ρ, and the others are indicated by Pearson's γ. CT_LFA is negatively correlated with liver fat accumulation.

Abbreviations: CT_LFA, CT values for liver; BMI, body mass index; VFA, visceral fat accumulation; SFA, subcutaneous fat accumulation; AHI, apnea-hypopnea index; ODI, oxygen desaturation index; %T<90, percentage of time spent with SpO₂ below 90% to total sleep time; SpO₂, oxygen saturation measured by pulse oximetry; REM, rapid eye movement; CRP, C-reactive protein; HOMA-IR, homeostasis model assessment of insulin resistance.