Table 5.

Prognostic factors: univariate and multivariate analyses (R0 cases).

Prognostic Variables	No.	Median OS	Univariate p-Value	Multivariate p-Value	Odds Ratio (±CI 95%)
Lymphadenectomy
D1	8	7.3 (5.2–9.3)	0.001	0.014	0.4 (0.2–0.8)
D2	58	16.0 (9.8–22.1)
D > 2	51	14.0 (6.2–21.7)
pT
1–2	7	38.0 (20.0–82.0)	0.006	0.042	9.4 (1.1–81.6)
3	40	11.2 (5.0–17.4)
4a	56	18.7 (9.7–27.6)
4b	14	5.0 (1.7–8.3)
pN
0	14	38.0 (26.5–49.5)	0.001	0.016	3.0 (1.3–7.1)
1	10	82.4 (25.0–85.0)
2	21	21.4 (14.5–28.2)
3a	36	11.0 (6.1–15.9)
3b	32	15.0 (9.5–20.5)
x	4	6.0 (4.1–7.9)
Number of resected nodes
<16	5	6.0 (1.8–10.1)	0.034	n.s.
16–22	17	5.0 (0.1–18.5)
23–29	25	15.3 (9.3–21.3)
30–44	36	18.4 (8.0–28.8)
45–59	26	14.0 (2.7–25.2)
60–74	6	21.4 (0.2–53.0)
>74	2	1.3
Hystology
Intestinal	49	13.5 (5.9–21.0)	0.011	n.s.
Diffuse	52	16.0 (10.7–21.2)
Mixed	11	7.3 (0.8–13.7)
Other	5	15.3 (0.1–33.7)
Chemotherapy
Yes	77	17.0 (9.8–24.2)	0.040	n.s.
No	40	11.0 (3.8–18.1)