Table 1.
Summary of patient characteristics [total n = 258]
| Variable | Crohn’s disease [n = 142], N [%] | Ulcerative colitis [n = 116], N [%] |
|---|---|---|
| Male | 73 [51.4] | 62 [53.5] |
| Race | ||
| White | 130 [92.9] | 104 [91.2] |
| Black | 6 [4.3] | 5 [4.4] |
| Asian | 3 [2.1] | 4 [4.4] |
| Other | 1 [0.7] | 0 [0] |
| Disease location by Montreal classification | ||
| L1 | 79 [59] | N/A |
| L2 | 38 [28] | |
| L3 | 18 [13] | |
| E1 | N/A | 10 [9] |
| E2 | 37 [32] | |
| E3 | 69 [59] | |
| Disease behaviour by Montreal classification | ||
| B1 | 88 [62.1] | N/A |
| B2 | 38 [26.7] | |
| B3 | 12 [8.7] | |
| B2/B3 | 4 [2.5] | |
| Prior biologic exposure | 101 [71.1] | 68 [58.6] |
| Prior IBD surgery | 60 [42.3] | 4 [3.5] |
| Current smoker | 10 [7.0] | 2 [1.7] |
| Combination therapy | 45 [31.7] | 33 [28.5] |
| Median [IQR] | Median [IQR] | |
| Age [years] | 33.1 [24–43.7] | 33 [22–52] |
| Disease duration [years] | 11 [6–17] | 5 [3–11] |
| Infusion number | 5 [4–9] | 6 [5–9] |
| Harvey Bradshaw Index | 2 [1–5] | N/A |
| Partial Mayo Score | N/A | 1 [0–2] |
| Albumin [g/dL] | 3.9 [3.5–4.2] | 3.9 [3.6–4.1] |
Abbreviations: IBD, inflammatory bowel disease; IQR, interquartile range; N/A, not applicable.