Table 1.
Demographic and clinical characteristics of the population
| Characteristic | No self-reported uveitis (n = 5106) | Self-reported uveitis (n = 27) | p valuea |
|---|---|---|---|
| Age mean (years) ± standard deviation | 44 ± 14 | 53 ± 13 | < 0.001* |
| Female sex (n (%)) | 2630 (51.5) | 17 (63.0) | 0.2 |
| Ethnicity (n (%)) | |||
| Mexican | 1031 (20.2) | 2 (7.4) | 0.1 |
| Other Hispanic | 572 (11.2) | 6 (22.2) | |
| Non-Hispanic white | 2247 (44.0) | 10 (37.1) | |
| Non-Hispanic black | 960 (18.8) | 6 (22.2) | |
| Others | 296 (5.8) | 3 (11.1) | |
| Spondyloarthropathies (n (%)) | |||
| Ankylosing spondylitis | 26 (0.5) | 3 (11.1) | < 0.001* |
| Enteropathic arthritis (UC) | 46 (0.9) | 3 (11.7) | 0.002** |
| Enteropathic arthritis (CD) | 15 (0.3) | 2 (7.1) | 0.002** |
| Smoking status (n (%)) | |||
| Current smoker | 1266 (24.8) | 6 (22.2) | 0.1 |
| Former smoker | 1026 (20.1) | 10 (37.0) | |
| Never smoker | 2814 (55.1) | 11 (40.7) | |
| Current health status (n (%)) | |||
| Mental health not good past 30 daysb | 2798 (54.8) | 13 (48.2) | 0.5 |
| Felt anxious past 30 daysc | 3533 (69.2) | 21 (77.8) | 0.3 |
| Educational level (n (%)) | |||
| Less than 9th grade | 463 (10.3) | 1 (4.5) | 0.2 |
| 9th grade to less than high school graduate | 687 (15.3) | 4 (18.2) | |
| High school graduate or GED equivalent | 1044 (23.2) | 4 (18.2) | |
| Some college | 1335 (29.6) | 4 (18.2) | |
| College graduate and beyond | 973 (21.6) | 9 (40.9) | |
| Annual house income (n (%)) | |||
| < US$20,000/year | 958 (21.3) | 2 (9.1) | 0.4 |
| US$20,000–44,999/year | 1422 (31.6) | 10 (45.5) | |
| US$45,000–74,999/year | 893 (19.8) | 5 (22.7) | |
| ≥ US$75,000/year | 1229 (27.3) | 5 (22.7) | |
aAll p values are unadjusted. p values were calculated using the Wald test for continuous variables and the design-adjusted Rao–Scott–Pearson χ2 test for categorical variables
bFor how many days during the past 30 days was your mental health not good (which includes stress, depression, and problems with emotions)?
cDuring the past 30 days, for about how many days have you felt worried, tense, or anxious? (Any number of days reported in these two questions was considered to be a positive finding)
*Significant at the 0.001 probability level
**Significant at the 0.01 probability level