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Table 2 Baseline characteristics of participants

From: Association between oxidative balance score and rheumatoid arthritis in female: a cross-sectional study

 

ALL

Non-RA

RA

P-value

N = 8219

N = 7622

N = 597

Age (year)

   

< 0.001

 ≤ 44

4571 (55.62%)

4483 (58.82%)

88 (14.74%)

 

 45–59

1989 (24.20%)

1814 (23.80%)

175 (29.31%)

 

 ≥ 60

1659 (20.18%)

1325 (17.38%)

334 (55.95%)

 

Race

   

< 0.001

 Mexican American

1369 (16.66%)

1289 (16.91%)

80 (13.40%)

 

 Other Hispanic

926 (11.27%)

847 (11.11%)

79 (13.23%)

 

 Non-Hispanic White

3102 (37.74%)

2890 (37.92%)

212 (35.51%)

 

 Non-Hispanic Black

1804 (21.95%)

1613 (21.16%)

191 (31.99%)

 

 Other race

1018 (12.39%)

983 (12.90%)

35 (5.86%)

 

Education level

   

< 0.001

 < High school

1656 (20.15%)

1461 (19.17%)

195 (32.66%)

 

 High school

1685 (20.50%)

1550 (20.34%)

135 (22.61%)

 

 > High school

4878 (59.35%)

4611 (60.50%)

267 (44.72%)

 

PIR

   

< 0.001

 < 1.3

2759 (33.57%)

2480 (32.54%)

279 (46.73%)

 

 [1.3, 3.5)

3052 (37.13%)

2852 (37.42%)

200 (33.50%)

 

 ≥ 3.5

2408 (29.30%)

2290 (30.04%)

118 (19.77%)

 

Hypertension

   

< 0.001

 Yes

2209 (26.88%)

1842 (24.17%)

367 (61.47%)

 

 No

6010 (73.12%)

5780 (75.83%)

230 (38.53%)

 

Diabetes

   

< 0.001

 Yes

709 (8.63%)

564 (7.40%)

145 (24.29%)

 

 No

7362 (89.57%)

6929 (90.91%)

433 (72.53%)

 

 Borderline

148 (1.80%)

129 (1.69%)

19 (3.18%)

 

SII

541.66 ± 325.38

538.34 ± 312.50

583.96 ± 457.40

0.896

TOBS

20.41 ± 7.25

20.58 ± 7.23

18.27 ± 7.18

< 0.001

DOBS

16. 01 ± 6.84

16.14 ± 6.82

14.38 ± 6.93

< 0.001

LOBS

4.40 ± 1.56

4.44 ± 1.57

3.89 ± 1.44

< 0.001