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Table 1 Patients’ characteristics for 357 ESCC patients

From: Preoperative systemic inflammation score (SIS) is superior to neutrophil to lymphocyte ratio (NLR) as a predicting indicator in patients with esophageal squamous cell carcinoma

Characteristics Number of patients (%)
Gender
 Male 279 (78.2)
 Female 78 (21.8)
Age (years)
  ≤ 65 276 (77.3)
  > 65 81 (22.7)
Vascular invasion
 Yes 312 (87.4)
 No 45 (12.6)
Tumor cell differentiation
 G1 54 (15.1)
 G2 258 (72.3)
 G3 45 (12.6)
Tumor location
 Upper third 60 (16.8)
 Middle third 260 (72.8)
 Lower third 37 (10.4)
T stage
 T1 40 (11.2)
 T2 71 (19.9)
 T3 209 (58.5)
 T4 37 (10.4)
N stage
 N0 155 (43.4)
 N1–3 202 (56.6)
Pathological stage
 I 29 (8.1)
 II 123 (34.5)
 III 149 (41.7)
 IVa 56 (15.7)
Adjuvant therapy
 Yes 214 (60)
 No 143 (40)