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Table 2 Overview of subgroups analysed for overall survival by trial. a) Subgroup analysis based on (Poortmans et al. [20])

From: Which target volume should be considered when irradiating the regional nodes in breast cancer? Results of a network-meta-analysis

Subgroups Thorsen Hennequin Poortmansa Whelan
Primary Tumor Size
 -T1 + +
 -T2 + +
 -T3 + +
Nodal Stage
 -N+ + + + +
 -N0 + + +
 -N1 + + +
 -N2+ + + +
Tumor Location
 -Medial / central + + +
 -Lateral + + +
Hormonal Status
 -Premenopausal + +
 -Postmenopausal + +
Type of Surgery
 -Mastectomy + +
 -Breast conservation + +
Receipt of Chemotherapy + +