Table 2.

Associations of Serum Adiponectin Level With Other Parameters in 134 Subjects

Serum adiponectin, μ g/mLa
Pearson's correlation	r	P value
Age, y	0.053	0.543
BMI, kg/m2	−0.249	0.004
Waist circumference, cm	−0.251	0.003
Visceral fat volume, mm3	−0.255	0.003
Partial correlation coefficients with adjustment for age, BMI	+ waist circumference		+ visceral fat volume
	r	P value	r	P value
AHI, events/ha	−0.172	0.050	−0.183	0.037
Duration with O2 saturation < 90%, mina	−0.120	0.171	−0.127	0.147
Arousal index, events/ha	−0.202	0.021	−0.200	0.022
Minimum O2 saturation, %b	0.143	0.105	0.141	0.109
Sleep efficiency, %b	0.084	0.341	0.079	0.368
Serum insulin, mIU/La	−0.410	< 0.001	−0.394	< 0.001
Serum glucose, mmol/L	−0.253	0.004	−0.262	0.003
HOMAa	−0.431	< 0.001	−0.417	< 0.001
Urinary (NE+NME), nmol/mmol creatinine	−0.234	0.007	−0.231	0.008

Abbreviations: BMI refers to body mass index; AHI, apnea-hypopnea index; HOMA, homeostasis model assessment for estimating insulin resistance; NE+NME, norepinephrine and normetanephrine level

By Pearson's correlation coeffi cients and partial correlation coeffi cients with adjustment for age, BMI, and waist circumference or visceral obesity

^alog-transformed before analysis

^blogit-transformed before analysis