Table 2 Characteristics of included samples by RA.

From: Association between body roundness index and osteoarthritis/rheumatoid arthritis: a cross-sectional study

Variables

Total

RA

Non-RA

p

(n = 17544)

(n = 987)

(n = 16557)

Gender(%)

   

0.735

Male

8346 (48.68)

452 (47.91)

7894 (48.71)

 

Female

9198 (51.32)

535 (52.09)

8663 (51.29)

 

Age(%, y)

   

< 0.001

20–40

5278 (35.74)

69 (11.32)

5209 (36.79)

 

41–60

5672 (35.19)

313 (38.67)

5359 (35.04)

 

>60

6594 (29.07)

605 (50.02)

5989 (28.17)

 

Race(%)

   

< 0.001

Mexican American

2115 (8.16)

116 (8.72)

1999 (8.14)

 

Other Hispanic

1984 (7.92)

136 (9.29)

1848 (7.86)

 

Non-Hispanic White

7421 (63.28)

358 (57.08)

7063 (63.55)

 

Non-Hispanic Black

3439 (10.41)

275 (16.12)

3164 (10.16)

 

Other Race - Including Multi-Racial

2585 (10.23)

102 (8.78)

2483 (10.29)

 

BMI(%, kg/m2)

   

< 0.001

<25

3527 (20.86)

123 (13.54)

3404 (21.18)

 

25–30

6726 (38.64)

356 (35.92)

6370 (38.76)

 

>30

7291 (40.50)

508 (50.54)

6783 (40.07)

 

BRI (mean (SD))

5.597 (2.402)

6.425 (2.428)

5.562 (2.395)

< 0.001

HSCRP (mean (SD), mg/L)

3.734 (7.086)

5.311 (8.578)

3.666 (7.007)

< 0.001

WBC (mean (SD), x 103 cells/uL)

7.198 (3.062)

7.413 (2.513)

7.188 (3.083)

0.048

SII (mean (SD))

538.427 (324.111)

586.961 (435.511)

536.342 (318.300)

0.005

Smoke status(%)

   

< 0.001

Yes

7290 (41.28)

523 (54.38)

6766 (40.72)

 

No

10,254 (58.72)

464 (45.62)

9791 (59.28)

 

Hypertension status(%)

   

< 0.001

Yes

7246 (36.71)

499 (46.50)

6747 (36.29)

 

No

10,298 (63.29)

488 (53.50)

9810 (63.71)

 

Drinking status(%)

   

0.001

Heavy

5834 (36.96)

269 (30.59)

5565 (37.23)

 

Moderate

5801 (34.57)

285 (32.54)

5516 (34.66)

 

None

5909 (28.47)

433 (36.87)

5476 (28.11)

 

Activity status(%)

   

< 0.001

Heavy

7528 (47.95)

323 (35.72)

7205 (48.47)

 

Moderate

5363 (30.91)

337 (33.68)

5026 (30.79)

 

Insufficient

4653 (21.14)

327 (30.60)

4326 (20.73)

 
  1. Categorical variables are expressed as unweighted counts (weighted percentages); continuous data are expressed as weighted means (SD). BMI, body mass index; BRI, body roundness index; SII, systemic inflammatory index.