Nomogram predicted survival of patients with adenocarcinoma of esophagogastric junction

Table 2 Multivariate analysis of the training set

Variable	Hazard ratio	95 % CI	P value
Age(year)	1.030	1.022–1.039	<0.001
Sex
Male	Ref
Female	0.849	0.672–1.073	0.170
Depth of invasion
T1	Ref
T2	1.788	1.319–2.423	<0.001
T3	1.821	1.297–2.555	0.001
T4	2.565	1.541–4.269	<0.001
Lymph node metastasis (n)
0	Ref
1–2	1.723	1.329–2.233	<0.001
3–6	2.386	1.823–3.124	<0.001
7–15	3.542	2.573–4.875	<0.001
≥15 m	6.947	4.250–11.353	<0.001
Examined lymph node (n)
<5	Ref
5–10	0.789	0.582–1.070	0.127
10–15	0.748	0.547–1.025	0.071
15–20	0.676	0.483–0.945	0.022
20–25	0.493	0.331–0.734	0.001
25–35	0.480	0.320–0.719	<0.001
35–45	0.370	0.185–0.741	0.005
≥45	0.188	0.084–0.422	<0.001
Grade
G1 + G2	Ref
G3 + G4	1.084	0.894–1.315	0.412

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