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Table 1 Background characteristics of the adolescent patients with inflammatory bowel disease (IBD) and juvenile idiopathic arthritis (JIA)

From: Complementary and alternative medicine use in adolescents with inflammatory bowel disease and juvenile idiopathic arthritis

  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  
  1. IQR = interquartile range; n.a. = not applicable.
  2. *p < 0.001 between IBD and JIA groups.
  3. **including oligoarthritis extended: n = 7.