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Table 1 Patient characteristics

From: Nomograms for predicting risk of locoregional recurrence and distant metastases for esophageal cancer patients after radical esophagectomy

Characteristic No. of patients(%)
Total 408
Sex
 Female 51(12.5%)
 Male 357(87.5%)
Age
 Median 59.5 years
 Range 39–83
Tumor length(cm)
 Median 4 cm
 Range 0.3–10.5 cm
Tumor width(cm)
 Median 2 cm
 Range 0.3-9 cm
Tumor site
 Upper thoracic portion 49(12.0%)
 Middle thoracic portion 208(51.0%)
 Lower thoracic portion 151(37.0%)
Pathological type
 Squamous carcinoma 376(92.2%)
 Adenocarcinoma 29(7.1%)
 Other 3(0.7%)
Differentiation
 Low 112(27.5%)
 Middle 204(50.0%)
 High 92(22.5%)
T-staging
 T1 67(16.4%)
 T2 106(26.0%)
 T3 235(57.6%)
N-staging
 N0 205(50.2%)
 N1 116(28.4%)
 N2 45(11.0%)
 N3 42(10.4%)
LVSI  
 Positive 85(20.8%)
 Negative 323(79.2%)
PNI
 Positive 72(17.6%)
 Negative 336(82.4%)
Adjuvant chemotherapy
 Yes 168(41.2%)
 No 240(58.8%)
  1. LVSI lymph vascular space invasion, PNI perineural invasion