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Table 1 Patient characteristics

From: Mapping patterns of metastatic lymph nodes for postoperative radiotherapy in thoracic esophageal squamous cell carcinoma: a recommendation for clinical target volume definition

Variable Value
Age (y), median (range) 56 (44–80)
Sex
 Male 60 (87.0%)
 Female 9 (13.0%)
Surgical type
 McKeown 15 (21.7%)
 Ivor-Lewis 41 (59.4%)
 Sweet 13 (18.9%)
Location
 Upper 11 (15.9%)
 Middle 31 (44.9%)
 Low 27 (39.2%)
Grade
 Well 8 (11.6%)
 Median 32 (46.4%)
 Poor 24 (34.8%)
 Undifferentiated 5 (7.2%)
Stage
 I 12 (17.4%)
 II 19 (27.5%)
 III 30 (43.5%)
 IVa 8 (11.6%)
Adjuvant chemotherapy
 Yes 17 (24.6%)
 No 52 (75.4%)