NOTCH1 and lung adenocarcinoma: Publication bias statistics were obtained using Begg’s test and Egger’s test, which did not indicate evidence of significant publication bias of Notch1 expression in NSCLC patients: NSCLC: Begg’s test, p = 0.296, Egger’s test, p = 0.591; LNM: Begg’s test, p = 1,Egger’s test, p = 0.553; TNM stages: Begg’s test, p = 1,Egger’s test, p = 0.713; lung adenocarcinoma: Begg’s test, p = 0.876, Egger’s test, p = 0.852; OS of NSCLC: Begg’s test, p = 0.221, Egger’s test, p = 0.123; OS of lung adenocarcinoma: Begg’s test, p = 0.089, Egger’s test, p = 0.148.