Table 4. Correlations between expression levels of key circadian genes and circulating hormones.

	leptin		TNF-α		Insulin		IL6		Resistin		IGF-1
	r	p-value	r	p-value	r	p-value	r	p-value	r	p-value	r	p-value
Per1	−0.609	<0.001	−0.352	0.061	−0.402	0.031	0.282	0.138	0.088	0.649	−0.364	0.052
Per2	−0.555	0.002	−0.336	0.075	−0.429	0.020	0.242	0.205	0.017	0.929	−0.465	0.011
Cry1	−0.540	0.003	−0.266	0.163	−0.275	0.148	0.028	0.887	0.328	0.082	−0.516	0.004
Cry2	−0.514	0.004	−0.050	0.796	−0.278	0.145	0.208	0.279	0.279	0.142	−0.371	0.047