Table 5 Demographics of clinical sample by illness classification
From: A pilot registry of unexplained fatiguing illnesses and chronic fatigue syndrome
CFS | ISF | Exclusion condition | Total | |
|---|---|---|---|---|
n (%) | n (%) | n (%) | n (%) | |
Sex | ||||
Female | 33 (89) | 13 (72) | 47 (96) | 93 (89) |
Male | 4 (11) | 5 (28) | 2 (4) | 11 (11) |
Age | ||||
Adolescent (<18) | 1 (3) | 3 (16) | 1 (2) | 5 (5) |
18-20 | 0 | 0 | 3 (6) | 3 (3) |
21-30 | 3 (8) | 3 (16) | 2 (4) | 8 (8) |
31-40 | 9 (24) | 3 (16) | 5 (11) | 17 (16) |
41-50 | 6 (16) | 1 (6) | 8 (16) | 15 (14) |
51-60 | 12 (32) | 6 (33) | 19 (39) | 37 (36) |
61-70 | 6 (16) | 2 (11) | 11 (22) | 19 (18) |
Race | ||||
White | 33 (89) | 18 (100) | 40 (82) | 91 (88) |
Black | 3 (8) | 0 | 7 (14) | 10 (10) |
Other | 1 (3) | 0 | 2 (4) | 3 (3) |
Education | ||||
1st through 8th grade | 0 | 2 (11) | 0 | 2 (2) |
Some high school | 3 (8) | 2 (11) | 5 (10) | 10 (10) |
High school graduate | 5 (13) | 1 (6) | 8 (16) | 14 (13) |
Trade/Technical/Vocational after | ||||
High School | 3 (8) | 0 | 9 (18) | 12 (12) |
Some college | 6 (16) | 3 (17) | 13 (27) | 22 (21) |
Two-year college graduate | 6 (16) | 4 (22) | 5 (10) | 15 (14) |
Four-year college graduate | 6 (16) | 4 (22) | 2 (4) | 12 (12) |
Postgraduate | 6 (16) | 2 (11) | 5 (10) | 13 (12) |
Other | 2 (5) | 0 | 2 (4) | 4 (4) |
BMI | ||||
≤18 | 2 (5) | 2 (11) | 0 | 4 (4) |
19-24 | 12 (32) | 5 (26) | 15 (31) | 32 (31) |
25-30 | 16 (43) | 7 (58) | 21 (43) | 44 (42) |
31-39 | 8 (22) | 4 (21) | 13 (27) | 25 (24) |
Previous CFS Diagnosis a | ||||
Yes | 20 (54) | 10 (56) | 27 (56) | 57 (55) |
No | 16 (43) | 5 (28) | 21 (44) | 42 (40) |
Total | 37 | 18 | 49 | 104 |