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Table 1 Population Characteristics of RA and Non-RA Respondents, the Health and Retirement Study 2016 Wave

From: No association between rheumatoid arthritis and cognitive impairment in a cross-sectional national sample of older U.S. adults

Population characteristic RA positive (n = 150) RA negative (n = 4312) p
Age 2016 (mean, SD), years 75.8 (SD 7.9) 77.5 (SD 8.2) *.008
Sex (n, %) * < .001
 Male 36 (24.0%) 1732 (40.2%  
 Female 114 (76.0%) 2580 (59.8%)  
Race * < .001
 White/Caucasian 109 (72.7%) 3582 (83.1%)  
 Non-White 41 (27.3%) 730 (16.9%)  
Education (n, %) *0.015
 Less than High School 36 (24.0%) 734 (17.0%)  
 High School or Equivalent 86 (57.3%) 2392 (55.5%)  
 Any College or More 28 (18.7%) 1186 (27.5%)  
  1. Continuous measures tested with t-test of equal variance
  2. Categorical measures tested using Pearson’s Chi Square
  3. RA Rheumatoid Arthritis
  4. *Denotes statistically significant p-value at .05 alpha