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Table 2 Diagnostic delay before referral and before diagnosis in 136 children with inflammatory bowel disease (IBD), further divided into Crohn’s disease (CD), ulcerative colitis (UC), and IBD unclassified (IBDU)

From: Impact of diagnostic delay to the clinical presentation and associated factors in pediatric inflammatory bowel disease: a retrospective study

Delay All IBD (n = 136) CD (n = 48) UC (n = 79) IBDU (n = 9)
Before referral
 Median (quartiles), months 3.3 (1.0, 7.0) 5.0 (2.3, 11.5) 3.0 (1.0, 6.0) 2.0 (2.0, 13.0)
 ≥ 6 months, % 37.5 47.7 30.7 44.4
 ≥ 12 months, % 18.0 25.0 13.3 22.2
Before diagnosis
 Median (quartiles), months 5.0 (2.5, 9.3) 6.6 (3.5, 12.6)1 4.1 (2.0, 8.0) 9.8 (2.6, 21.0)
 ≥ 6 months, % 45.6 54.2 39.2 55.6
 ≥ 12 months, % 19.9 27.1 13.9 33.3
  1. 1P = 0.01 compared with UC. There were no other statistically significant differences between the groups