Sociodemographic information
| Demographic variables | ME/CFSFamily history(n = 72) | ME/CFSNo family history(n = 328) | ControlsFamily history(n = 16) | ControlsNo family history(n = 398) |
|---|---|---|---|---|
| Age [years, mean (SD)] | 48.42 (12.31) | 49.86 (13.64) | 56.27 (14.14) | 55.55 (15.52) |
| Gender % (n) | ||||
| Male | 7.35 (5) | 12.38 (40) | 26.67 (4) | 18.44 (71) |
| Female | 92.65 (63) | 87.62 (283) | 73.33 (11) | 81.00 (312) |
| Other | 0.00 (0) | 0.00 (0) | 0.00 (0) | 0.52 (2) |
| Not reported | 5.88 (4) | 1.52 (5) | 6.25 (1) | 3.27 (13) |
| Race % (n) | ||||
| Black/African American | 0.00 (0) | 0.00 (0) | 0.00 (0) | 3.29 (13) |
| White/Caucasian | 94.37 (67) | 97.24 (317) | 100.00 (16) | 91.90 (363) |
| Native American/Alaskan Native | 0.00 (0) | 0.00 (0) | 0.00 (0) | 0.76 (3) |
| Asian or Pacific Islander | 0.00 (0) | 0.92 (3) | 0.00 (0) | 1.27 (5) |
| Other | 5.63 (4) | 1.84 (6) | 0.00 (0) | 2.78 (11) |
| Not reported | 1.39 (1) | 0.61 (2) | 0.00 (0) | 0.75 (3) |
| Marital status % (n) | ||||
| Married | 46.48 (33) | 50.46 (165) | 75.00 (12) | 62.97 (250) |
| Separated | 4.23 (3) | 2.45 (8) | 0.00 (0) | 1.01 (4) |
| Widowed | 2.82 (2) | 2.14 (7) | 12.50 (2) | 6.55 (26) |
| Divorced | 21.13 (15) | 16.82 (55) | 6.25 (1) | 13.85 (55) |
| Never married | 25.35 (18) | 28.13 (92) | 6.25 (1) | 15.62 (62) |
| Not reported | 1.39 (1) | 0.30 (1) | 0.00 (0) | 0.25 (1) |
| Education level % (n) | ||||
| Less than high school | 2.78 (2) | 2.45 (8) | 0.00 (0) | 1.01 (4) |
| High school/GED | 13.89 (10) | 6.13 (20) | 12.50 (2) | 7.79 (31) |
| Standard college degree | 41.67 (30) | 51.22 (167) | 56.25 (9) | 60.05 (239) |
| Graduate/professional degree | 41.67 (30) | 40.18 (131) | 31.25 (5) | 31.16 (124) |
| Not reported | 0.00 (0) | 0.61 (2) | 0.00 (0) | 0.00 (0) |
SD: standard deviation; GED: General Educational Development