TABLE 2.

Associations of BAT volume and BAT and skeletal muscle ¹⁸F-fluorodeoxyglucose uptake with ad libitum energy intake¹

	Model 1			Model 2			Model 3
	β	R 2	P	β	R 2	P	β	R 2	P
BAT volume	1.02	0.029	0.13	0.40	0.264	0.50	0.49	0.283	0.43
BAT metabolic activity	0.09	0.012	0.42	0.07	0.264	0.50	0.09	0.284	0.41
BAT SUVmean	−15.29	0.011	0.47	3.76	0.261	0.84	9.67	0.281	0.61
BAT SUVpeak	−1.76	0.007	0.71	0.50	0.260	0.91	1.73	0.280	0.69
All muscles SUVpeak	−6.56	0.006	0.97	19.39	0.260	0.91	−41.47	0.279	0.82
Deep muscles SUVpeak	26.27	0.006	0.85	36.08	0.261	0.76	12.80	0.279	0.91
Cervical muscles SUVpeak	0.71	0.006	1.00	46.26	0.262	0.68	25.90	0.279	0.82
Cold-sensitive muscles SUVpeak	2.02	0.006	0.99	72.13	0.263	0.54	53.48	0.280	0.66

¹Unstandardized β, R², and P values are from multiple linear regression analyses (n = 102). Model 1: adjusted for the date when the PET/CT scan was performed. Model 2: adjusted as for Model 1 plus sex. Model 3: adjusted as for Model 2 plus fat mass and lean mass. All muscles: paracervical, sternocleidomastoid, scalene, longus colli, trapezius, parathoracic, supraspinatus, subscapular, deltoid, pectoralis major, and triceps brachii. Deep muscles: paracervical, scalene, longus colli, parathoracic, and subscapular. Cervical muscles: paracervical, sternocleidomastoid, scalene, and longus colli. Cold-sensitive muscles: sternocleidomastoid, scalene, longus colli, and pectoralis major. BAT, brown adipose tissue; SUV, standardized uptake value.