Table 3. Association between the ACT score and age, exercise, raw vegetable intake on multiple linear stepwise regression analysis.

	β	S.E	t	p
Age (< 65 yrs)	-0.146	0.364	3.134	0.002
Periodical exercise	0.152	0.371	-3.059	0.002
High raw vegetable intake	-0.096	0.364	-2.012	0.045

Periodical exercise indicates the amount of exercise more than 3 METs-h/week.

High raw vegetable intake indicates more than 5 units of raw vegetable intake per week.

R2 = 0.049, ANOVA p<0.001