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Table 1 Characteristics of two cohorts of patients with AEG

From: Development and validation of a novel competing risk model for predicting survival of esophagogastric junction adenocarcinoma: a SEER population-based study and external validation

Characteristics Training cohort (N = 1755) Validation cohort (N = 273)
No. of patients % No. of patients %
Race
 White 1523 86.8 0 0
 Black 81 4.6 0 0
 Others 151 8.6 273 100
Sex
 Female 373 21.2 73 26.7
 Male 1382 78.8 200 73.3
Age (year)
 < 60 674 38.4 154 56.4
 ≥ 60 1081 61.6 119 43.6
Grade
 Low grade 946 53.9 223 81.6
 High grade 809 46.1 50 18.4
T stage
 T1 355 20.2 47 17.2
 T2 227 12.9 38 13.9
 T3 768 43.8 63 23.1
 T4 405 23.1 125 45.8
N stage
 N0 716 40.8 25 9.2
 N1 391 22.2 46 16.8
 N2 340 19.4 68 24.9
 N3 308 17.6 134 49.1
Size (cm)
 < 1.0 83 4.7 8 2.9
 < 2.0 189 10.8 42 15.4
 < 3.0 265 15.1 49 17.9
 < 5.0 584 33.3 102 37.4
 ≥ 5.0 634 36.1 72 26.4
Number of examined lymph nodes
 < 5 128 7.3 3 1.1
 < 10 323 18.4 5 1.8
 < 15 428 24.4 20 7.3
 ≥ 15 876 49.9 245 89.7
Follow-up time (months, median, IQR) 33 (14,79) 21 (12–40)
  1. IQR interquartile range