Table 4.

Stepwise regression predicting the MCS scores

Variables	Mental Component Summary (MCS)
	Step 1 (β)	Step 2 (β)	Step 3 (β)
Age	−0.224**	−0.199**	− 0.198**
Monthly income		4.840*	4.534*
Exercise			3.556*

^*P < 0.05, ^**P < 0.01