Table 1.
Sociodemographics of cohort.
| Characteristics | All subjects | RA subjects | Healthy subjects | Depressed subjects | SLE subjects | |||
|---|---|---|---|---|---|---|---|---|
| (N = 209) | (N = 82) | (N = 22) | p value | (N = 32) | p value | (N = 73) | p value | |
| Gender, number (%) | ||||||||
| Female | 192 (92) | 69 (84) | 21 (95) | 0.291 | 29 (91) | 0.550 | 73 (100) | <0.001 |
| Age, mean ± SD | 49.27 ± 11.99 | 54.99 ± 10.08 | 43.14 ± 11.54 | < 0.001 | 49.25 ± 14.03 | 0.040 | 44.70 ± 10.38 | <0.001 |
| Education (years), mean ± SD | 8.43 ± 4.45 | 6.85 ± 3.99 | 13.55 ± 3.10 | < 0.001 | 8.91 ± 4.31 | 0.017 | 8.88 ± 4.14 | 0.002 |
| Education level, number (%) | < 0.001 | 0.200 | <0.001 | |||||
| Primary (or less) | 97 (46) | 53 (65) | 1 (5) | 15 (47) | 28 (38) | |||
| Middle school | 34 (16) | 14 (17) | 2 (9) | 7 (22) | 11 (15) | |||
| High school | 44 (21) | 7 (9) | 8 (36) | 5 (16) | 24 (33) | |||
| College | 32 (15) | 7 (9) | 10 (45) | 5 (16) | 10 (14) | |||
| Graduate school | 2 (1) | 1 (1) | 1 (5) | 0 (0) | 0 (0) | |||
| Marriage status, number (%) | 0.024 | 0.428 | 0.026 | |||||
| Unmarried | 33 (16) | 9 (11) | 8 (36) | 6 (19) | 10 (14) | |||
| Married | 135 (65) | 50 (61) | 9 (41) | 22 (69) | 54 (74) | |||
| Divorced | 28 (13) | 14 (17) | 4 (18) | 2 (6) | 8 (11) | |||
| Widowed | 10 (5) | 8 (10) | 0 (0) | 2 (6) | 0 (0) | |||
| Cohabiting | 3 (1) | 1 (1) | 1 (5) | 0 (0) | 1 (1) | |||
| Employment status, number (%) | 0.002 | 0.137 | 0.452 | |||||
| Employed | 88 (42) | 28 (34) | 16 (73) | 16 (50) | 28 (38) | |||