Table 3.

Sleep Duration in Relation to Adipokines Levels Adjusted With or Without BMI.

	6–12 years old						13–18 years old
	βa	p	βb	p	βc	p	βa	p	βb	p	βc	p
ln leptin (ng/mL)	−0.222	<.001	−0.188	<.001	−0.054	.039	−0.017	.492	−0.044	.102	0.004	.821
ln total-adiponectin (µg/mL)	0.019	.231	0.009	.622	−0.013	.446	0.010	.416	0.015	.267	0.006	.646
ln HMW-adiponectin (µg/mL)	0.057	<.001	0.045	.006	0.030	.097	0.006	.669	0.004	.779	−0.005	.739
ln resistin (ng/mL)	−0.003	.833	−3.90E−04	.982	0.008	.661	−0.012	.281	−0.009	.469	−0.006	.617
ln FGF21 (pg/mL)	0.074	.048	0.082	.041	0.066	.104	−0.002	.940	−0.005	.874	−0.011	.748
ln RBP4 (µg/mL)	−0.010	.335	−0.002	.845	0.007	.491	−0.016	.027	−0.017	.032	−0.014	.069
ln SPARC (µg/mL)	0.013	.342	0.018	.234	0.020	.187	−9.75E−04	.938	−0.004	.744	−7.10E−04	.957

FGF21 = fibroblast growth factor 21; HMW-adiponectin = high-molecular-weight adiponectin; RBP4 = retinol binding protein 4; SPARC = secreted protein, acidic, cysteine-rich.

β means unstandard coefficients.

β_a was adjusted for age, gender, and Tanner stage.

β_b was adjusted for model 1 and family history, diet, physical activity, parental education and vocation, and residence.

β_c was adjusted for model 2 and BMI.

Values in bold are significant at p < .05.