Summary of hierarchical regression analysis for variables predicting sitting time in persons with MS. Note: MS: Multiple Sclerosis; B: unstandardized beta-coefficient; SE B: standard error of the unstandardized beta-coefficient; β: standardized beta-coefficient; GLTEQ: Godin Leisure-Time Exercise Questionnaire; PDDS: Patient Determined Disease Steps. Note: Marital status coding: 0=unmarried; 1=married; GLTEQ range: 0-198 units/day; Employment coding: 0=unemployed; 1=employed; PDDS coding: 0=no ambulatory impairment; 1=mild ambulatory impairment, 2=moderate ambulatory impairment; Education coding: 1=less than 7th grade, 2=9th grade, 3=partial high school, 4=high school graduate, 5=1-3 years of college, 6=college/university graduate, 7=master’s degree, 8=PhD or equivalent. R2 = 0.034 for step 1, p<0.001; ΔR2=0.033 for step 2, p<0.001; ΔR2=0.017 for step 3, p<0.001; ΔR2=0.017 for step 4, p<0.001; ΔR2=0.006 for step 5, p=.023.