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Table 3 Impact of the number of negative lymph nodes on locoregional recurrence-free survival in patients with and without postmastectomy radiotherapy

From: Number of negative lymph nodes can predict survival of breast cancer patients with four or more positive lymph nodes after postmastectomy radiotherapy

Survival endpoint

0-12 NLNs (%)

13-39 NLNs (%)

Without PMRT

With PMRT

p

Without PMRT

With PMRT

p

LRFS (8-year)

61.9

85.6

<0.001*

92.8

92.1

0.500

DMFS (8-year)

42.1

49.3

0.018*

59.9

66.2

0.204

DFS (8-year)

36.5

46.9

0.001*

57.1

42.0

0.199

OS (8-year)

49.1

58.5

0.008*

72.3

68.2

0.653

  1. PMRT, postmastectomy radiotherapy; NLNs, negative lymph nodes; LRFS, locoregional-recurrence-free survival; DMFS, distant metastasis-free survival; DFS, disease free survival; OS, overall survival.
  2. *p < 0.05 indicates a significant difference.
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Radiation Oncology

ISSN: 1748-717X

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