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Table 3 Independent factors affecting disease-free survival in oesophageal squamous cell carcinoma by multivariate analysis

From: The role of vascular invasion and lymphatic invasion in predicting recurrent thoracic oesophageal squamous cell carcinoma

Variable

RR

Disease-free survival

P value

95% CI

Gender: female/male

0.8

0.6–1.1

0.260

Tumour length:≤4.0cm/>4.0cm

1.2

0.9–1.5

0.171

Differentiation:G1/G2/G3

1.0

0.8–1.1

0.595

p T stage:T1+T2/T3+T4

1.4

1.0–1.8

0.032

p N stage:N0/N1+N2+N3

1.9

1.5–2.5

<0.001

Vascular invasion: no/presence

1.3

1.0–1.7

0.086

Lymphatic invasion: no/presence

1.5

1.1–1.9

0.008