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Table 1 Demographic data for 111 subjects from the Wichita clinical study

From: Evidence of inflammatory immune signaling in chronic fatigue syndrome: A pilot study of gene expression in peripheral blood

  Empiric Classification LCA Classification
  CFS (n = 39) IFS (n = 35) Controls (n = 37) LCA-1 (n = 23) LCA-3 (n = 17) LCA-4 (n = 11) LCA-5 (n = 14) LCA-6 (n = 11) LCA-0/2 (n = 35)
Mean Age (SD) 51.4 (8.2) 50.3 (8.2) 51.6 (9.0) 50.9 (7.6) 54.7 (5) 44.4 (8.7) 48.2 (10.2) 55.8 (3.4) 51.3 (9)
Mean Years Ill (SD) 16.7 (11.0) 14.4 (10.0) 2.8 (5.0) 15.5 (10.7) 11.3 (4) 16.0 (12.3) 16.8 (10.5) 16.4 11.2 14.3 (12.9)
Race [n (%) ]          
   White 35 (90.0) 32 (91.4) 36 (97.3) 21 (91) 17 (100) 10 (90.9) 11 (78.6) 11 (100) 33 (94.3)
   Black 1 (2.6) 3 (8.6) 1 (2.7) 1 (4.4) 0 (0) 1 (9.1) 1 (7.1) 0 (0) 2 (5.7)
   Multiple Race 2 (5.1) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 2 (14.3) 0 (0) 0 (0)
   Other 1 (2.6) 0 (0) 0 (0) 1 (4.4) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0)
Onset Type          
   Gradual 32 (82.0) 28 (80.0) 10 (27.0) 18 (78.3) 14 (82.4) 9 (81.8) 11 (78.6) 10 (90.9) 8 (22.9)
   Sudden 6 (15.4) 3 (8.6) 0 (0.0) 3 (13) 1 (5.9) 1 (9.1) 3 (21.4) 1 (9.1) 0 (0.0
   Undetermined 1 (2.6) 4 (11.4) 27 (73.0) 2 (8.7) 2 (11.8) 1 (9.1) 0 (0) 0 (0) 27 (77.1)
BMI [n (%) ]          
   <25 5 (13.8) 10 (28.6) 7 (18.9) 0 (0) 4 (23.5) 8 (72.7) 3 (21.4) 3 (27.3) 4 (11.4)
   25–30 20 (51.3) 14 (40) 18 (48.7) 9 (39.1) 6 (35.3) 3 (27.3) 9 (64.3) 7 (63.6) 18 (51.4)
   >30 14 (35.9) 11 (31.4) 12 (32.4) 14 (60.9) 7 (41.2) 0 (0) 2 (14.3) 1 (9.1) 13 (37.1)
  1. 1 SD is standard deviation