Impact of Regular Exercise and Attempted Weight Loss on Quality of Life among Adults with and without Type 2 Diabetes Mellitus

Table 4

Multivariate linear regression results for SF-12 physical and mental component summary scores.

	SF-12 Physical Component Summary		SF-12 Mental Component Summary
Model variables	Beta coefficient	𝑃-value	Beta coefficient	𝑃-value
Exercise regularly for >6 months (reference = no)	2.10	< .0001	1.43	< .0001
Tried to lose weight (reference = no)	0.041	.87	0.59	.013
Type 2 diabetes mellitus (reference = no DM)	2.41−	< .0001	0.52−	.034
Age, years	0.26−	< .0001	0.13	< .0001
Gender (reference = men)	2.21−	< .0001	1.69−	< .0001
White (reference = other race)	0.02−	.92	0.09−	.55
Education (reference = ≤ high school degree)	0.24	< .0001	0.15	.022
Income (reference = ≤$35,000/year)	1.52	< .0001	1.05	< .0001
Body mass index, kg/m^2	0.44−	< .0001	−0.07	< .0001

R-square = 0.31, 𝑃<.0001