Table 1 Baseline demographics
All Patients (N = 120) | Flare (n = 63) | No Flare (n = 57) | Visit Immediately Prior to Flare (n = 42) | P-value | |
|---|---|---|---|---|---|
Mean ± SD or Median (IQR) or N (%) | Mean ± SD or Median (IQR) or N (%) | Mean ± SD or Median (IQR) or N (%) | Mean ± SD or Median (IQR) or N (%) | ||
Age, years | 11.1 ± 4.6 | 11.7 ± 4.9 | 10.4 ± 4.1 | 12.3 ± 4.9 | 0.13 |
BMI | 19.3 (16.6, 21.8) | 19.8 (16.4, 21.8) | 18.7 (16.6, 22.2) | 19.5 (16.2, 21.4) | 0.79 |
Sex, male | 34 (28.3) | 17 (27) | 17 (29.8) | 14 (33.3) | 0.73 |
Race | 0.15 | ||||
Caucasian | 112 (93.3) | 61 (96.8) | 51 (89.5) | 41 (97.6) | |
Non-Caucasian | 8 (6.7) | 2 (3.2) | 6 (10.5) | 1 (2.4) | |
Ethnicity | 0.63 | ||||
Hispanic or Latino | 13 (10.8) | 6 (9.5) | 7 (12.3) | 3 (7.1) | |
Not Hispanic or Latino | 107 (89.2) | 57 (90.5) | 50 (87.7) | 39 (92.9) | |
ANA Status | 0.93 | ||||
Positive | 59 (50.4) | 31 (50.8) | 28 (50) | 21 (52.5) | |
Negative | 58 (49.6) | 30 (49.2) | 28 (50) | 19 (47.5) | |
RF Status | 0.42 | ||||
Positive | 14 (12) | 6 (9.7) | 8 (14.5) | 2 (4.8) | |
Negative | 103 (88) | 56 (90.3) | 47 (85.5) | 40 (95.2) | |
JIA Subtype | 0.26 | ||||
Extended Oligo | 18 (15) | 8 (12.7) | 10 (17.5) | 6 (14.3) | |
Poly RF+ | 14 (11.7) | 5 (7.9) | 9 (15.8) | 1 (2.4) | |
Poly RF- | 88 (73.3) | 50 (79.4) | 38 (66.7) | 35 (83.3) | |