Clinical Study
A Thirty-Year Follow-Up Surveillance Study for Neoplasia of a Dutch Ulcerative Colitis Cohort
Table 2
Cox regression analysis per independent factor.
(a) Positive for any dysplasia |
| Factors | Number (%) | Univariate | Multivariate | HR | 95% CI | Sig. | HR | 95% CI | Sig. |
| Sex | | 1,552 | 0.963–2.502 | 0.071 | 1,430 | 0.878–2.329 | 0.150 | Male | 45/148 (30.4) | | | | | | | Female | 27/145 (18.6) | | | | | | | Location | | 1,922 | 1.115–3.312 | 0.019 | 1,918 | 1.111–3.311 | 0.019 | Pancolitis | 55/178 (30.9) | | | | | | | Distal colitis | 17/115 (14.8) | | | | | | | Age at 1st surveillance, yrs | | 1,032 | 1.013–1.051 | 0.001 | 1,028 | 1.009–1.047 | 0.004 |
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(b) Positive for HGD/CRC |
| Factors | Number (%) | Univariate | Multivariate | HR | 95% CI | Sig. | HR | 95% CI | Sig. |
| Sex | | 1,354 | 0.586–3.129 | 0.479 | 1,460 | 0.624–3.421 | 0.383 | Male | 14/148 (9.5) | | | | | | | Female | 9/145 (6.2) | | | | | | | Location | | 13,232 | 1.783–98.182 | 0.012 | 13,508 | 1.818–100.384 | 0.011 | Pancolitis | 22/178 (12.4) | | | | | | | Distal colitis | 1/115 (0.9) | | | | | | | Age at 1st surveillance, yrs | | 1,008 | 0.975–1.042 | 0.654 | 1,002 | 0.968–1.036 | 0.926 |
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(c) Positive for CRC |
| Factors | Number (%) | Univariate | Multivariate | HR | 95% CI | Sig. | HR | 95% CI | Sig. |
| Sex | | 0.748 | 0.271–2.064 | 0.575 | 0.874 | 0.310–2.460 | 0.798 | Male | 7/148 (4.7) | | | | | | | Female | 8/145 (5.5) | | | | | | | Location | | 8,305 | 1.092–63.165 | 0.041 | 8,402 | 1.102–64.062 | 0.040 | Pancolitis | 14/178 (7.9) | | | | | | | Distal colitis | 1/115 (0.9) | | | | | | | Age at 1st surveillance, yrs | | 0.986 | 0.943–1.031 | 0.531 | 0.984 | 0.941–1.029 | 0.486 |
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