Color Distribution Differences in the Tongue in Sleep Disorder

Table 6

Difference in V7-to-V3 ratios according to the presence of sleep disorder.

	Normal (𝑛=402)	Sleep disorder (𝑛=52)	𝑃 value
VR	^†0.574 (1.334)	0.267 (1.133)	0.019*

VR: V7-to-V3 ratios (V7/V3) in the normal and sleep disorder groups in the first experiment, ^†median (interquartile range); 𝑃 values for variables were derived from the Mann-Whitney 𝑈 test (*𝑃<0.05).