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

Figure 2:

Forest plots of comparison in meta-analysis. (C) Local recurrence odds ratio. (D) Distant recurrence odds ratio.

We regret the error and we are relieved that this makes no difference to our conclusion and will not have misled practice.