Table 2: Symptoms at presentation.

Middle EasternControl value
YesNoYesNo

Abdominal pain13813100.77
Diarrhoea1651851.00
Mucus or blood in stools101113100.76
Weight loss10118150.54
Per rectal bleeding2197160.14
Loss of appetite3182210.66

Data compared by Fisher’s exact test. Presenting symptoms not available for 3 Middle Eastern patients and 1 control patient.