. 2012 Aug 23;5:303–311. doi: 10.2147/DMSO.S34835

Table 4.

Variables predicting PCS, physical function, MCS, vitality, and psychological well-being of HRQoL (multiple regression of significant predictors, in blocks)

Variables	Model 1			Model 2			Model 3
Variables	B	SE B	β	B	SE B	β	B	SE B	β
PCS
Age	−0.24	0.17	−0.08	−0.68	0.17	−0.23^***	−0.67	0.17	−0.22^***
Sex	3.16	2.56	0.07	2.38	2.37	0.05	2.16	2.36	0.05
BMI				−1.61	0.22	−0.41^***	−1.59	0.21	−0.41^***
PA							0.09	0.04	0.11^*
R²	0.01			0.16			0.17
F for change in R²	1.56			55.95^***			4.15^***
Physical function
Age	−0.32	0.16	−0.10	−0.83	0.16	−0.27^***	−0.83	0.16	−0.27^***
Sex	4.33	2.45	0.09	3.05	2.20	0.07	2.72	2.18	0.06
BMI				−1.85	0.80	−0.48^***	−1.85	0.20	−0.47^***
PA							0.10	0.04	0.13^**
R²	0.02			0.21			0.23
F for change in R²	3.10^*			87.73^***			7.60^***
MCS
Age	0.02	0.15	0.01	−0.21	0.16	−0.08	−0.21	0.16	−0.08
Sex	4.91	2.34	0.12^*	4.61	2.21	0.11^*	4.06	2.24	0.10
BMI				−0.84	0.21	−0.24^**	−0.81	0.20	−0.23^**
PA							0.13	0.04	0.20^***
R²	0.02			0.07			0.10
F for change in R²	2.29			16.71^***			13.20^***
Vitality
Age	0.26	0.14	0.11	0.03	0.14	0.01	0.04	0.14	0.02
Sex	2.92	2.02	0.08	2.35	1.96	0.06	1.84	1.91	0.05
BMI				−0.84	0.18	−0.27^***	−0.81	0.17	−0.24^***
PA							0.15	0.03	0.24^***
R²	0.02			0.08			0.14
F for change in R²	3.34^*			22.28^***			22.03^***
Psychological well-being
Age	0.23	0.14	0.09	0.11	0.14	0.05	0.12	0.14	0.05
Sex	2.91	2.03	0.08	2.70	2.02	0.07	2.30	2.00	0.06
BMI				−0.41	0.18	−0.13^*	−0.39	0.18	−0.13^*
PA							0.11	0.03	0.18^**
R²	0.02			0.03			0.06
F for change in R²	2.71			4.98^*			11.32^*

Notes:

*P < 0.05 level;

**P < 0.01 level;

***P < 0.001 level (2-tailed).

Abbreviations: BMI, body mass index; HRQoL, health-related quality of life; MCS, mental composite summary; PA, physical activity; PCS, physical composite summary.