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Table 4 Univariate and multivariate analysis of survival time after IMLN recurrence

From: Internal mammary lymph node recurrence: rare but characteristic metastasis site in breast cancer

Factors N Univariate analysis Multivariate analysis
   Median (m) p-value HR 95%CI p-value
As first site of metastasis    0.407 NS
   Yes 121 34     
   No 12 64     
Size of IMLN    0.984 NS
   ≤4 cm 116 51     
   >4 cm 17 38     
DFI of IMLN recurrence    0.001* 1.4 0.7- 2.9 0.342
   <2 y 44 31     
   ≥2 y 89 63     
Concurrent metastasis    0.024* 0.7 0.4- 0.9 0.031*
   No and local 73 61     
   Visceral or bone 60 32     
Endocrine therpay    0.000* 0.2 0.1- 0.5 0.001*
   Yes 54 78     
   No 24 26     
Chemotherapy    0.078 NS
   Yes 72 34     
   No 61 62     
Radiotherapy &    0.04* 0.3 0.1- 0.9 0.026*
   Yes 59 63     
   No 74 32     
  1. &Radiotherapy included the patients who received RT as initial (7 cases) and palliative (52 cases) treatment
  2. *p < 0.05
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