Table 1.
Background characteristics of the adolescent patients with inflammatory bowel disease (IBD) and juvenile idiopathic arthritis (JIA)
| IBD | JIA | Total | |
|---|---|---|---|
| No. of respondents |
97 |
50 |
147 |
| % of all respondents |
66% |
34% |
n.a. |
| (% of recruited patients) |
(76%*) |
(51%*) |
(65%) |
| Recruited during |
74 |
40 |
113 |
| Clinical visits (% of respondents) |
(76%) |
(80%) |
(77%) |
| Recruited by mail |
24 |
10 |
34 |
| (% of respondents) |
(24%) |
(20%) |
(23%) |
| Age, median (IQR) |
15.5* |
13.8* |
14.7 |
| (13.7-16.7) |
(12.7-14.9) |
(13.0-16.2) |
|
| Gender, male |
51 |
17 |
68 |
| (%) |
(53%) |
(34%) |
(46%) |
| Disease duration |
3.4* |
6.9* |
3.8 |
| (years), median (IQR) |
(1.3-5.4) |
(2.7-10.1) |
(1.6-7.6) |
| Disease subtype | Crohn’s: n = 46 |
Oligoarthritis: n = 18 |
|
| Ulcerative colitis: n = 41 |
Polyarthritis: n = 25** |
|
|
| |
Enthesitis related: n = 4 |
|
|
| Unclassified colitis: n = 10 | Psoriasis related: n = 3 |
IQR = interquartile range; n.a. = not applicable.
*p < 0.001 between IBD and JIA groups.
**including oligoarthritis extended: n = 7.