Table 4

Univariate analysis of overall risk for proximal extension in patients with proctitis at diagnosis

Patients with disease progression (N = 25)

Patients without disease progression (N = 37)

P §


Males

15 (60%)

24 (64.8%)

NS

Urban residence

19 (76%)

21 (56.7%)

0.200

Months to diagnosis

21 ± 50.4

27.1 ± 31.7

0.125

Age at diagnosis (yr)

43.8 ± 15.4

34.6 ± 13.4

NS

Positive family history

2 (8%)

6 (16.2%)

NS

Current smoking

2 (8%)

14 (37.8%)

0.042

Previous appendectomy

2 (8%)

2 (5.4%)

NS

Chronic continuous course

3 (12%)

1 (2.7%)

0.189

Immunosuppressive drugs

0*

1 (2.7%)

NS


Values are given as mean ± SD or number of patients; Values in parentheses are percentages; N, number; *Data collected until change of disease extent; §P values from survival analysis using log-rank test; Variables having a p value between 0.51 and 0.2, although insignificant, were included in the regression analysis to avoid confounding effects;

Chatzicostas et al. BMC Gastroenterology 2006 6:21   doi:10.1186/1471-230X-6-21

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