Table 7 Multivariate analyses using Cox's proportional-hazard risk model

From: Ten-year follow-up results of a randomised controlled study comparing level-I vs level-III axillary lymph node dissection for primary breast cancer

 

Overall survival

Disease-free survival

Variable

Risk ratio (95% confidence)

P -value

Risk ratio (95% confidence)

P -value

Age

0.988 (0.960–1.017)

0.4143

0.964 (0.945–0.983)

0.0003

pT (1/2/3)

2.293 (1.353–3.884)

0.0020

2.254 (1.563–3.250)

<0.0001

pN (0/1/2/3)

2.073 (1.568–2.740

<0.0001

2.191 (1.804–2.662)

<0.0001

ER (0/1)

0.395 (0.222–0.701)

0.0015

0.848 (0.571–1.259)

0.4136

Level of dissection (1/3)

0.964 (0.721–1.290)

0.8067

0.995 (0.8151–1.215)

0.9634

No. of dissected nodes

0.987 (0.938–1.039)

0.6156

0.969 (0.934–1.006)

0.1032

  1. ER=oestrogen receptor.
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