Table 1

 Clinical characteristics (phenotype) of an Australian Crohn’s disease population

Clinical characteristicNo. in CD population
*Disease behaviour available for 268 patients. †Smoking data available for 287 patients. All clinical data were obtained from the Royal Brisbane & Women’s Hospital Irritable Bowel Disease (IBD) patient database containing patients who were recruited from the Brisbane region. Ethics approval and informed consent were obtained from all participants.
Total304
Women:men192:112
Mean age now (years)40.9
Mean age at diagnosis (years)28.4
Mean disease duration (years)12.5
Familial:sporadic93:211
Location
    Ileal/ileocaecal134
    Colonic53
    Ileal and colonic112
    Perianal alone4
Disease behaviour*
    Stricturing75
    Penetrating107
    Inflammatory86
    Ever stricturing123
    Never stricturing145
    Immunosuppressive therapy179
    Any Crohn’s-related surgery236
    Bowel resection207
    Granulomas150 of 253
Smoking habit at diagnosis† (%):
    Never118 (41)
    Current146 (51)
    Ex-smoker23 (8)