Correlation between exercise, personal income level and health-related quality of life in patients with newly diagnosed stable angina

Table 3 Stepwise regression predicting PCS scores

Variables	Physical Component Summary (PCS)
Variables	Step 1 (β)	Step 2 (β)	Step 3 (β)	Step 4 (β)	Step 5 (β)
Age	−0.524^**	−0.518^**	−0.479^**	− 0.456^**	− 0.430^**
Exercise		4.569^**	4.342^**	4.045^**	4.133^**
Monthly income			7.379^**	7.844^**	7.417^**
Sleep quality				−5.701^**	−5.725^**
Drinking					−4.678^**

ISSN: 2054-9369