Assessing disease activity using the pediatric Crohn’s disease activity index: Can we use subjective or objective parameters alone?

Table 1 Descriptive statistics

	Registry (n = 4141)		REACH (n = 1011)		IMAgINE (n = 1881)
	Range	Median (IQR)	Range	Median (IQR)	Range	Median (IQR)
Age at baseline	1.5-16.1	12.2 (3.6)	6.0-17.8	13.8 (3.2)	6-17.0	14.0 (4.0)
Age at diagnosis	1.5-15.9	12.2 (3.6)	4.8-16.6	11.8 (4.1)	2.4-16.4	10.6 (3.2)
Gender (female), n (%)	180 (43.5)		40 (39.6)		82 (43.6)
	Range	mean ± SD	Range	mean ± SD	Range	mean ± SD
PCDAI BL	0-82.5	31.39 ± 15.34	25-62.5	41.14 ± 8.18	7.5-62.5	40.97 ± 7.48
PCDAI Q1	0-52.5	10.25 ± 9.75	0-40	9.77 ± 8.55	0-57.5	16.78 ± 12.64
PCDAI Q4	0-50.0	8.58 ± 9.21	0-70	12.07 ± 14.10	0-70	19.56 ± 16.34

¹The baseline characteristics describe participants with full pediatric Crohn’s disease activity index (PCDAI) data (i.e. had individual PCDAI scores collected) at baseline. Q1 PCDAI scores describe participants with full baseline and Q1 PCDAI data available (n = 414, 97, and 159 participants for the Registry, REACH, and IMAgINE datasets respectively). Q4 PCDAI scores describe participants with full baseline and Q1 PCDAI data available (n = 216, 75, and 183 participants for the Registry, REACH, and IMAgINE datasets respectively). PCDAI: Pediatric Crohn’s disease activity index.