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Table 2 Crohn’s disease diagnosis information - grouped by duration from disease onset to date of initial definite diagnosis

From: Current diagnosis and management of Crohn’s disease in China: results from a multicenter prospective disease registry

Year of disease onsetnAge (years) at disease onsetaMonths from disease onset to definite diagnosisb
Before 201013027.0 (10.82)79.4 (67.03)
20103428.1 (11.73)39.4 (24.11)
20113826.4 (10.65)28.7 (20.81)
20124128.6 (10.07)21.0 (13.57)
20137426.3 (8.48)17.3 (8.99)
201410428.7 (10.74)7.7 (5.41)
20157830.5 (11.53)3.1 (2.13)
  1. All values are mean (standard deviation) unless otherwise stated
  2. n total number of participants in a subset
  3. aAge at disease onset is calculated as (date of disease onset-date of birth+ 1)/365.25, rounded to integer
  4. bTime from disease onset to definite diagnosis, measured by (date of definite diagnosis-date of disease onset), rounded to integer