Table 1

Baseline demographics and disease characteristics

Total
N=249
Age (years)
 Mean (SD)50.5 (16.6)
 Min to max19 to 86
 Median (IQR)51 (36–64)
Sex, n (%)
 Female105 (42%)
 Male144 (58%)
BMI (kg/m2)
 N233
 Mean (SD)26.6 (5.7)
 Min to max15.7 to 55.7
 Median (IQR)25.7 (22.5–29.7)
Age at diagnosis (years)
 Mean (SD)46.6 (16.6)
 Min to max10 to 86
 Median (IQR)47 (33–60)
Time since diagnosis (years)
 Mean (SD)3.8 (4.0)
 Min to max0 to 17.3
 Median (IQR)2.03 (0.6–6.6)
Categorised, n (%)
 ≤1 year82 (33%)
 >1 year167 (67%)
CCI
 Mean (SD)0.6 (1.3)
 Min to max0 to 8
 Median (IQR)0 (0–1)
Categorised, n (%)
 0181 (73%)
 1–251 (21%)
 3–417 (7%)
 5+0 (0%)
Disease extent, n (%)
 Pancolitis38 (15%)
 Left-sided11 (4%)
 Proctosigmoiditis56 (23%)
 Proctitis89 (36%)
 Other/Unknown55 (22%)
Index colectomy (top five procedures only)*, n (%)
 Other specified subtotal excision of colon (H29.8)37 (15%)
 Colectomy and ileostomy NEC (H11.4)35 (14%)
 Total colectomy and ileostomy NEC (H05.3)32 (13%)
 Panproctocolectomy and ileostomy (H04.1)29 (12%)
 Unspecified subtotal excision of colon (H29.9)20 (8%)
Emergency/elective colectomy, n (%)
 Emergency104 (42%)
 Elective145 (58%)
Subtotal/full colectomy†, n (%)
 Subtotal65 (26%)
 Full184 (74%)
  • *All other colectomy-related procedures (n=28 in total) at index were performed in <6% of patients.

  • †Determined based on the number of colectomy-related procedure codes observed within the study period (1=full, ie, index only; >1=subtotal, ie, index and subsequent procedure).

  • BMI, body mass index; CCI, Charlson Comorbidity Index.