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Table 1 Comparison demographics groups among disease groups

From: Familial autoimmunity in the childhood arthritis and rheumatology research alliance registry

Characteristic

Total

JIA

SLE

JDM

p-value

Total number

5,756

4,677

639

440

 

Female gender N (%)

4,218 (73.3)

3,368 (79.9)

532 (83.4)

318 (72.3)

<0.001

Age at enrollment (years)

11.9 ± 4.8

11.4 ± 4.8

16.0 ± 3.2

11.0 ± 4.4

<0.001

Age onset of symptoms (years)

7.1 ± 4.7

6.5 ± 4.5

12.3 ± 3.2

6.6 ± 3.8

<0.001

Race N (%)

     

AA a

551 (9.6)

269 (5.8)

225 (35.2)

57 (13.0)

<0.001

AI b

95 (1.7)

73 (1.6)

12 (1.9)

10 (2.3)

0.476

Asian

197 (3.4)

116 (2.5)

69 (10.8)

12 (2.7)

<0.001

NH c

36 (0.6)

25 (0.5)

8 (1.3)

3 (0.7)

0.096

White

4,912 (85.3)

4,244 (90.7)

307 (48.0)

361 (82.1)

<0.001

Other

222 (3.9)

146 (3.1)

51 (8.0)

25 (5.7)

<0.001

Ethnicity (Non-Hispanic) N (%)

5,059 (87.9)

4,214 (90.1)

464 (72.6)

381 (86.6)

<0.001

Overall Well-being Score

2.3 ± 2.3

2.3 ± 2.3

2.6 ± 2.5

2.1 ± 2.3

<0.001

PGA

1.6 ± 1.9

1.6 ± 1.9

2.0 ± 1.9

1.6 ± 1.9

<0.001

CHAQ

0.34 ± 0.51

0.35 ± 0.51

0.24 ± 0.46

0.36 ± 0.63

<0.001

ANA N (% positive)d

2,802 (56.2)

2,012 (49.7)

577 (96.5)

213 (62.3)

<0.001

  1. aAA – African American or Black, bAI- American Indian or Alaskan Native
  2. cNH- Native Hawaiian or Pacific Islander, dIndicates missing data