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Table 2 Distribution of Demographic Factors by Illness Group

From: Complementary and alternative medical therapy utilization by people with chronic fatiguing illnesses in the United States

Demographic Factor CFS-like n = 49 Chronic Fatigue n = 338 Prolonged Fatigue n = 53 Non-Fatigued n = 444 p-value
Age (mean ± SD) 42.5 ± 10.6 46 ± 12.2 38.5 ± 13.9 43.2 ± 13.5 p < 0.0001
Sex: n (%)      
   Male 14 (28.5) 101 (29.9) 13 (24.5) 200 (45.0) p < 0.0001
   Female 35 (71.4) 237 (70.1) 40 (75.5) 244 (54.9)  
Race: n (%)      
   White 44 (89.8) 294 (86.9) 43 (81.1) 369 (83.1) p = 0.75
   Black 3 (6.1) 24 (7.1) 8 (15.1) 46 (10.4)  
   Other 2 (4.1) 20 (5.9) 2 (3.8) 29 (6.5)  
Income* (median): n (%)      
   ≤$40,000 21 (51.2) 176 (57.7) 33 (71.7) 158 (41.9) p < 0.0001
   >$40,000 20 (48.8) 129 (42.3) 13 (28.3) 219 (58.1)  
Education:** n, (%)      
   < High school graduate 8 (16.7) 51 (5.8) 11 (20.7) 49 (11.4) p = 0.19
   High school graduate 17 (34.7) 140 (41.4) 19 (35.8) 150 (34.8)  
   Some college 13 (27.1) 77 (8.8) 15 (28.3) 105 (24.4)  
   College graduate 6 (12.2) 38 (11.2) 3 (5.7) 79 (18.3)  
   Post graduate 4 (8.2) 27 (7.9) 5 (9.4) 48 (11.1)  
  1. SD: standard deviation; *105 subjects were missing information on income;
  2. **19 subjects were missing information on education