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Table 1 Baseline characteristics

From: Health care utilization in patients with gout: a prospective multicenter cohort study

  Total Cohort
N = 186
Los Angeles
N = 112
Birmingham
N = 74
Age, Mean (SD) 64.6 (10.9) 65.7 (11.2) 62.9 (10.2)
Gender, N (%)    
Male 182 (97.85) 109 (97.32) 73 (98.65)
Female 4 (2.15) 3 (2.68) 1 (1.35)
Race, N (%)    
American Indian 1 (0.54) 1 (0.89) 0 (0)
Asian 6 (3.23) 6 (5.36) 0 (0)
Native Hawaiian or other Pacific Islander 1 (0.54) 1 (0.89) 0 (0)
Black or African American 60 (32.26) 17 (15.18) 43 (58.11)
White 107 (57.53) 76 (67.86) 31 (41.89)
Other 11 (5.91) 11 (9.82) 0 (0)
Ethnicity, N (%)    
Hispanic or Latino 21 (13.04) 20 (18.69) 1 (1.85)
Not Hispanic or Latino 140 (86.96) 87 (81.31) 53 (98.15)
Missing 25 5 20
Education, N (%)    
Grades 9 to 11 11 (5.98) 8 (7.27) 3 (4.05)
High school graduate 35 (19.02) 17 (15.45) 18 (24.32)
Some college 88 (47.83) 54 (49.09) 34 (45.95)
College graduate 30 (16.30) 13 (11.82) 17 (22.97)
Beyond college 20 (10.87) 18 (16.36) 2 (2.70)
Tophi Diagnosed, N (%)    
No 136 (78.61) 74 (67.89) 62 (96.88)
Yes 37 (21.39) 35 (32.11) 2 (3.13)
Missing 13 3 10
Serum Uric Acid, Mean (SD)
[Median (IQR)]
8.3 (3.4)
[7.9 (3.5)]
7.5 (1.9)
[7.5 (3.0)]
10.1 (5.1)
[9.7 (8.2)]
Severity of Gout, Mean (SD)    
Patient Assessment (GAQ) 5.7 (3.1)
[6.0 (5.0)]
6.1 (3.1)
[6.5 (4.5)]
5.2 (3.1)
[4.0 (5.0)]
Physician Assessment 3.1 (2.7)
[3.0 (4.0)]
3.0 (2.5)
[3.0 (3.5)]
3.3 (2.9)
[2.8 (5.0)]
Charlson Comorbidities, Mean (SD) 5.14 (2.74) 5.36 (3.02) 4.75 (2.16)
  1. α = T-test; β = Fisher Exact test; γ = Wilcoxon test; ε = Chi-square test
  2. Abbreviations: IQR inter-quartile range, SD standard deviation, GAQ Gout assessment questionnaire