Table 4: Multivariate linear regression results for SF-12 physical and mental component summary scores.

SF-12 Physical Component SummarySF-12 Mental Component Summary
Model variablesBeta coefficient -valueBeta coefficient -value

Exercise regularly for >6 months (reference = no)2.10  .00011.43  .0001
Tried to lose weight (reference = no)0.041.870.59.013
Type 2 diabetes mellitus (reference = no DM)  .0001 .034
Age, years  .00010.13  .0001
Gender (reference = men)  .0001  .0001
White (reference = other race) .92 .55
Education (reference = high school degree)0.24  .00010.15.022
Income (reference = 35,000/year)1.52  .00011.05  .0001
Body mass index, kg/  .0001  .0001

R-square = 0.31,