Table 2.

Multiple regression analysis between physical fatigue, mental fatigue, CFS-related scores, and lifestyles or BMI after adjusting for age and gender.

	Physical fatigue score		Mental fatigue score		CFS-related score
	β coefficient	95% CI	β coefficient	95% CI	β coefficient	95% CI
Lifestyles†
Sleeping Hours	−1.04	−1.39 ~ −0.69**	−1.39	−1.76 ~ −1.03**	−1.58	−1.98 ~ −1.12**
Extracurricular sports activity	0.25	0.12 ~ 0.39**	0.17	0.03 ~ 0.32*	0.19	0.04 ~ 0.35*
Food balance score	−0.24	−0.32 ~ −0.15**	−0.29	−0.39 ~ −0.21**	−0.21	−0.31 ~ −0.11**
Snacks between regular meals	−0.17	−0.34 ~ −0.01*	−0.22	−0.39 ~ −0.05*	−0.18	−0.37 ~ 0.02
Sugar-sweetened beverage	−0.45	−0.70 ~ −0.19**	−0.44	−0.71 ~ −0.17**	−0.88	−1.36 ~ −0.41**
BMI	0.06	−0.03 ~ 0.15	0.07	−0.02 ~ 0.16	0.07	−0.04 ~ 0.17

*P < .05,**P < .001

^†For the analysis, scores were given for each element. The details are shown in “Materials" section.