Figure 4
From: Sublobectomy versus Lobectomy for stage IA (T1a) non-small-cell lung cancer: a meta-analysis study
Forest plot of HR for OS impact of operative approach (segmentectomy versus lobectomy) of stage IA NSCLC patients. The combined HR displayed in this figure, compared with segmentectomy, suggest that there was a significant benefit of lobectomy on OS of stage IA patients with tumors no larger than 2 cm (HR 1.48; 95% CI, 1.27 to 1.73; P <0.00001)]. CI, confidence interval; df, degree of freedom; HR, hazard ratio; OS, overall survival [5, 9, 12, 16, 17, 21].