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Table 1 Demographic and clinical characteristics of the population

From: Epidemiology of uveitis in a US population-based study

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)
  1. 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
  2. bFor how many days during the past 30 days was your mental health not good (which includes stress, depression, and problems with emotions)?
  3. 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)
  4. *Significant at the 0.001 probability level
  5. **Significant at the 0.01 probability level