Table 2.
Cox proportional hazard model for relapse in IFX group.
| Parameter |
Multivariate analysis (Cox proportional hazard model) | ||
|---|---|---|---|
| HR | 95% CI | p value | |
| Sex | 0.65 | ||
| Male | 1 | ||
| Female | 0.69 | 0.097–3.28 | |
| Age at start of the treatment (y) | 0.23 | ||
| ≥20 | 1 | ||
| <20 | 1.64 × 10−9 | 0–3.89 | |
| Disease duration at the treatment (y) | 0.012 | ||
| ≥5 | 1 | ||
| <5 | 9.17 | 1.54–181.6 | |
| Disease Extension | 0.33 | ||
| Left-sided colitis | 1 | ||
| Extensive colitis | 2.69 | 0.42–52.1 | |
| Response to corticosteroids | |||
| Dependence | 1 | ||
| Refractory | 0.89 | 0.11–5.81 | 0.91 |
| Others | 9.01 × 10−9 | 0–34.7 | 0.56 |
| Concomitant use of thiopurine | 0.74 | ||
| Yes | 1 | ||
| No | 1.36 | 0.21–10.6 | |
| Withdrawal of infliximab | 0.2 | ||
| No | 1 | ||
| Yes | 2.07 × 10−9 | 1.15 × 10−26–4.00 | |
HR, hazard ratio; CI, confidence interval.