Table 4.

Relationship between parameters in the supraclavicular region obtained by near-infrared time-resolved spectroscopy (NIR_TRS) and anthropometric and body composition parameters.

					Correlation (r2)
					Supraclavicular region
Ref. no.	Instrument	n	Study design	Parameters	${\mu }_{\text{s}}^{\prime }$	Oxy-Hb	Deoxy-Hb	Total-Hb	StO2	AdjStO2
Fuse et al. (33)	NIRTRS	413	Cross-sectional	Age	0.00	0.07*	0.04*	0.06*	0.02*	NM
				BMI	0.02*	0.11*	0.12*	0.12*	0.00	NM
				%body fat	0.00	0.16*	0.10*	0.15*	0.02*	NM
				Visceral fat area	0.01*	0.13*	0.12*	0.14*	0.00	NM

The correlation coefficients of brown adipose tissue (BAT)-related parameters [tissue oxygenated hemoglobin (oxy-Hb), deoxygenated Hb (deoxy-Hb), total Hb (total-Hb), tissue Hb oxygen saturation (StO₂,), and optical scattering parameters] as determined by NIR_TRS and body composition and anthropometric parameters are presented.

${\mu }_{\text{s}}^{\prime }$, reduced scattering coefficient determined by NIR_TRS; adjStO₂, adjusted StO₂ in the supraclavicular region relative to the deltoid muscle; BMI, body mass index; Ref. no., reference number is obtained from the list of references in this paper; NM, not mentioned.

^*P < 0.05.