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. 2024 Jun 10;19(6):e0301672. doi: 10.1371/journal.pone.0301672

Table 3. Prodromal symptoms or clinical features reported by patients, categorised as important alone or in combination by Atia et al. [38] and patient-estimated delay by category in months (m).

Important individually   Important in combination     Category of Delay
 Case Diarrhoea
>1w
Bloody stool >1w Elevated calprotectin Abdominal. pain >1m Anaemia Chronic fatigue Family history Joint pain, uveitis, etc. Patient delay (m) General triage (m) Specialist triage
Crohn’s                
P01 - - 114 4 2.5
P08 - - - - - - 0.5 4 60
P09 - - - - 2 8 10
P10 - ? - 120 6 18
P11 - - - 240 9.5 6
P13 - - - 6 4 3
P18 - - - - - - 192 24 2
P19 - - - - 48 13 11
Ulcerative Colitis                
P02 - - - 36 12 4
P03 - - - - 16 2 3
P04 - - - - 3.5 6 0
P05 - - - - - 1.5 4 9
P06 - - - 13 0.5 0.1
P14 - - - ? - 60 120 384
P16 - - - - - - 0 60 0.5
P17 - - - - - - 120 60 0.3
P20 - - - - - - 5 6 0
Proctitis                
P12 - - - - - - 2 6 6
IBD-U                
P07 - - 0 6 4.3
P15 - - - - - - - 3 24 1