Corrigendum to ‘Systematic lymphadenectomy versus sampling of ipsilateral mediastinal lymph-nodes during lobectomy for non-small cell lung cancer: a systematic review of randomized trials and a meta-analysis’ [Eur J Cardiothorac Surg 2017;51:1149-1156]†

The number of events in ACOSOG Z0031 trial regarding local and distant recurrence forest plots are reversed in our publication [local recurrence: 24 in mediastinal lymph node sampling (MLNS) arm vs 30 in mediastinal lymph node dissection (MLND) arm; distant recurrence 111 in MLNS arm vs 114 in MLND arm]. We have corrected the numbers in parts C and D of Figure 2 as follows:

• local recurrence OR would be 0.92 instead of 0. 74
• distant recurrence OR would be 0.85 instead of 0.82

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