Observational Study
Copyright ©The Author(s) 2021.
World J Gastroenterol. Aug 14, 2021; 27(30): 5100-5111
Published online Aug 14, 2021. doi: 10.3748/wjg.v27.i30.5100
Table 1 Descriptive statistics
Registry (n = 4141)
REACH (n = 1011)
IMAgINE (n = 1881)

Range
Median (IQR)
Range
Median (IQR)
Range
Median (IQR)
Age at baseline1.5-16.112.2 (3.6)6.0-17.813.8 (3.2)6-17.014.0 (4.0)
Age at diagnosis1.5-15.912.2 (3.6)4.8-16.611.8 (4.1)2.4-16.410.6 (3.2)
Gender (female), n (%)180 (43.5)40 (39.6)82 (43.6)
Rangemean ± SDRangemean ± SDRangemean ± SD
PCDAI BL0-82.531.39 ± 15.3425-62.541.14 ± 8.187.5-62.540.97 ± 7.48
PCDAI Q10-52.510.25 ± 9.750-409.77 ± 8.550-57.516.78 ± 12.64
PCDAI Q40-50.08.58 ± 9.210-7012.07 ± 14.100-7019.56 ± 16.34