Table 2 Univariate and multivariate analyses related to disease-free survival in 97 colorectal cancer patients

Age

0.98 (0.94–1.02)

0.38

Gender (F)

1.42 (0.50–4.04)

0.51

Tumor location (colon vs rectum)

4.23 (1.49–12.01)

0.01

4.11 (1.42–11.91)

0.009

Tumor size (≦5 cm)

0.64 (0.24–1.73)

0.38

Tumor invasion (SI)

0.52 (0.12–2.28)

0.39

Differentiation (por or muc)

1.50 (0.20–11.35)

0.70

Lymphatic invasion (ly0, 1 vs ly2, 3)

1.10 (0.25–4.83)

0.90

Venous invasion (v0, 1 vs v2, 3)

3.10 (1.00–9.56)

0.05

3.85 (1.15–12.92)

0.03

Budding

0.52 (0.19–1.41)

0.20

Number of lymph nodes analyzed (<12)

1.32 (0.51–3.43)

0.57

HLA expression level (dull or negative)

3.86 (1.26–11.85)

0.02

5.36 (1.68–17.11)

0.005

Adjuvant chemotherapy (no)

0.82 (0.30–2.22)

0.70