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Table 3 Overall 1-, 5-, 10- and 20-year survival regarding treatment of liver metastases; [patients at risk]

From: Neuroendocrine liver metastasis from the small intestine: Is surgery beneficial for survival?

Treatment Estimated cumulative survival (Kaplan–Meier)
1-year survival 5-year survival 10-year survival 20-year survival
Group 1 Surveillance n = 52 86.5 ± 4.4% [49] 68.8 ± 6.4% [33 24.3 ± 6.6% [9] 3.4 ± 3.2 [1]
Group 2 Surgery n = 22 96.0 ± 3.9% [21] 73.9 ± 10.2% [11] 60.5 ± 12% [6] 0
Subgroup 2a Minor liver surgery (≤ 1 segment) n = 15 94.1 ± 5.7% [14] 76.7 ± 12.2% [6] 63.9 ± 15.5% [3] 0
Subgroup 2b Major liver surgery (> 1 segment) n = 7 100% [7a] 71.4 ± 17.1% [5] 57.1 ± 18.7% [3] 0
  1. aOnly one patient remained free of liver-metastases during follow-up