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Table 1 Characteristics of the study sample

From: Further validation of the Multidimensional Fatigue Inventory in a US adult population sample

Characteristic CFS-like
(n = 292, 37.29%)
Chronically Unwell
(n = 269, 34.36%)
Well
(n = 222, 28.35%)
Age, yrs, Mean (SD) 43.73 (9.87) 43.05 (11.24) 43.68 (9.96)
Sex****    
   Female 243 (83.22%) 170 (63.43%) 184 (82.51%)
   Male 49 (16.78%) 98 (36.57%) 39 (17.49%)
Race**    
   Black 65 (22.26%) 84 (31.34%) 48 (21.52%)
   White 208 (71.23%) 173 (64.55%) 170 (76.23%)
   All Others 19 (6.51%) 11 (4.10%) 5 (2.24%)
Geographic Areas    
   Metropolitan 43 (14.73%) 56 (20.90%) 33 (14.80%)
   Urban 108 (36.99%) 78 (29.10%) 81 (36.32%)
   Rural 141 (48.29%) 134 (50.00%) 109 (48.88%)
Educational Status***    
   < High School 23 (7.88%) 15 (5.60%) 7 (3.14%)
   High School Graduate/GED 75 (25.68%) 52 (19.40%) 33 (14.80%)
   Trade, Technical, or Vocation School after High School 30 (10.27%) 44 (16.42%) 24 (10.76%)
   Some College 68 (23.29%) 49 (18.28%) 47 (21.08%)
   2-yr College Graduate or Higher 95 (32.53%) 107 (39.93%) 112 (50.22%)
   Missing 1 (0.34%) 1 (0.37%) 0 (0.00%)
Marital Status    
   Married/living together 184 (63.01%%) 168 (62.69%) 151 (67.71%)
   Single/widowed/divorced/seperated 107 (36.64%) 100 (37.31%) 72 (32.29%)
   Missing 1 (0.34%) 0 (0.00%) 0 (0.00%)
Employment Status****    
   Full Time: >= 30 hours/week 161 (55.14%) 167 (62.31%) 159 (71.30%)
   Part Time: < 30 hours/week 31 (10.62%) 26 (9.70%) 23 (10.31%)
   Self-employed 2 (068%) 0 (0.00%) 2 (0.90%)
   Not employed 16 (5.48%) 23 (8.58%) 3 (1.35%)
   Retired 2 (0.68%) 6 (2.24%) 9 (4.04%)
   Laid off 4 (1.37%) 6 (2.24%) 2 (0.90%)
   Disabled 45 (15.41%) 17 (6.34%) 2 (0.90%)
   Homemaker 20 (6.85%) 14 (5.22%) 17 (7.62%)
   Student 10 (3.42%) 9 (3.36%) 6 (2.69%)
   Missing 1 (0.34%) 0 (0.00%) 0 (0.00%)
Income*    
   >= GA Median Income 146 (50.00%) 141 (52.61%) 142 (63.68%)
   < GA Median Income 133 (45.55%) 117 (43.66%) 75 (33.63%)
   Missing 13 (4.45%) 10 (3.73%) 6 (2.69%)
  1. All values are No. (%) unless other indicated. Column percentage