In the published article titled “Numbers and stations: impact of examined lymph node on precise staging and survival of radiologically pure-solid NSCLC: a multi-institutional study,” JTO Clin Res Rep 1:100035, the authors note the following several important points that should be declared:
-
1.
PET-CT was not performed in most patients (84.96%) (Table 1), which may result in inaccurate clinical staging.
-
2.
This study included 27 patients who did not receive lymph node dissection (see Supplementary Fig. 1), which may affect the analysis of the results on ELNs and ENSs.
-
3.
A total of 73 patients undergoing sublobar resection were included in this study. Although the HRs of different types of resection for prognosis were not significantly different after LASSO-Cox analysis, especially 17 patients with wedge resection did not undergo adequate lymph node evaluation, which could affect the subsequent result analysis.
Address for correspondence: Yongbing Chen, MD, PhD. E-mail: chentongt@sina.com.