Table 5.
Univariate analysis | Multivariate analysis | ||||
---|---|---|---|---|---|
N = 37 patients | HR [95% CI] | p-value | HR [95% CI] | p-value | |
Age at diagnosis mean ± sd | 27.0 ± 14.9 years | 0.99 [0.96–1.02] | 0.48 | ||
Age at baseline mean ± sd | 37.6 ± 19.0 years | 0.99 [0.97–1.01] | 0.29 | ||
Female gender n [%] | 18 [48.6%] | 0.06 | 0.42 [0.19–0.93] | 0.033 | |
Smoking habits | 0.12 | ||||
Current smoker | 2 [5.4%] | Reference | |||
Former smoker | 9 [24.3%] | 0.24 [0.04–1.32] | 0.10 | ||
Non-smoker | 26 [70.3%] | 0.60 [0.14–2.64] | 0.50 | ||
Disease duration | 10.0 ± 10.8 years | 0.37 | |||
IBD subtype | 1.37 [0.60–3.10] | 0.45 | |||
Crohn’s disease n [%] | 26 [70.3%] | ||||
Ulcerative colitis n [%] | 11 [29.7%] | ||||
Montreal classification | |||||
Location | 0.35 | ||||
L1 n [%] | 9/26 [34.6%] | Reference | |||
L2 n [%] | 4/26 [15.4%] | 0.35 [0.07–1.66] | 0.19 | ||
L3 n [%] | 13/26 [50.0%] | 0.63 [0.23–1.73] | 0.37 | ||
L4 n [%] | 2/26 [7.7%] | 1.93 [0.43–8.65] | 0.39 | ||
Behaviour | 0.57 | ||||
B1 n [%] | 11/26 [42.3%] | Reference | |||
B2 n [%] | 8/26 [30.8%] | 1.51 [0.55–4.13] | 0.42 | ||
B3 n [%] | 7/26 [26.9%] | 1.64 [0.52–5.9] | 0.40 | ||
Extent | 0.66 | ||||
E1 n [%] | 2/11 [18.2%] | Reference | |||
E2 n [%] | 3/11 [27.3%] | 1.35 [0.21–8.71] | 0.75 | ||
E3 n [%] | 6/11 [54.5%] | 0.96 [0.17–5.41] | 0.96 | ||
Perianal lesions n [%] | 7/26 [26.9%] | 1.22 [0.42–3.53] | 0.70 | ||
Prior intestinal resection n [%] | 11/26 [42.3%] | 1.65 [0.70–3.94] | 0.22 | ||
SCCAI = 0 or HBI ≤ 2 | 23 [62.2%] | 4.81 [1.74–13.32] | 0.001 | 1.72 [0.52–5.66] | 0.375 |
Duration of clinical remission at baseline mean ± sd | 1.5 ± 3.6 months | 0.98 [0.96–1.02] | 0.13 | ||
Duration of clinical remission at baseline >6 months n, % | 4 [10.8%] | 0.49 [0.16–1.48] | 0.17 | ||
CRP > 5.0 g/L n [%] | 8 [21.6%] | 1.79 [0.77–4.11] | 0.16 | ||
Faecal calprotectin > 100 µg/g n [%] | 15 [40.5%] | 7.52 [2.78–20.32] | <0.0001 | 7.43 [2.31–23.92] | 0.001 |
durin | |||||
Biologics | 28 [75.7%] | 0.84 | |||
Anti-TNF agents | 15 [40.5%] | 1.39 [0.66–2.96] | 0.38 | ||
Infliximab | 4 [10.8%] | 1.84 [0.63–5.39] | 0.25 | ||
Adalimumab | 10 [27.0%] | 0.93 [0.39–2.20] | 0.87 | ||
Golimumab | 1 [2.7%] | - | NA | ||
Anti-integrins | 13 [35.1%] | 0.76 [0.34–1.69] | 0.50 | ||
Vedolizumab | 12 [32.4%] | 0.64 [0.28–1.48] | 0.47 | ||
Natalizumab | 1 [2.7%] | - | NA | ||
Immunosuppressant therapies | 21 [56.8%] | 1.19 [0.56–2.56] | 0.64 | ||
Azathioprine | 7 [18.9%] | 1.46 [0.58–3.67] | 0.41 | ||
6-mercaptopurin | 2 [5.4%] | - | 0.11 | ||
Methotrexate | 12 [32.4%] | 1.38 [0.63–3.01] | 0.40 | ||
Steroids | |||||
Prednisone or prednisolone | 25 [67.6%] | 1.44 [0.63–3.30] | 0.38 | ||
Prednisone or prednisolone posology [mg] | 31.0 ± 13.6 | 0.46 | |||
Budesonide | 11 [29.7%] | 1.01 [0.46–2.25] | 0.97 | ||
Budesonide MMX | 4 [10.8%] | 0.23 [0.03–1.72] | 0.12 | ||
5-ASA | 5 [13.5%] | 1.70 [0.63–4.60] | 0.28 |
NA: not applicable; sd: standard deviation; n: number; TNF: tumor necrosis factor; IBD: inflammatory bowel disease; HBI: Harvey-Bradshaw index; SCCAI: simple clinical colitis activity index; HR: hazard ratio; CI: confidence interval; CRP: C-reactive protein. Statistically significant values are given in boldface.