Skip to main content

Table 2 Demographic and pathological characteristics of the 1730 patients in the current study

From: Retrieved lymph nodes from different anatomic groups in gastric cancer: a proposed optimal number, comparison with other nodal classification strategies and its impact on prognosis

Characteristic All patients
n %
Sex
 Male 1250 72.3
 Female 480 27.7
Age (years)
 ≤ 60 1037 59.9
 > 60 693 40.1
Primary tumor site
 Upper 223 12.9
 Medium 265 15.3
 Lower 1188 68.7
 Mixed 54 3.1
Size (cm)
 ≤ 4.5 1016 58.7
 > 4.5 714 41.3
 Median (IQR, cm) 4 (3–6)  
Histological type
 Differentiated 671 38.8
 Undifferentiated 1059 61.2
8th UICC/AJCC T stage
 T1 402 23.2
 T2 328 19.0
 T3 566 32.7
 T4a 402 23.2
 T4b 32 1.9
8th UICC/AJCC N stage
 N0 812 46.9
 N1 331 19.1
 N2 294 17.0
 N3a 212 12.3
 N3b 81 4.7
8th UICC/AJCC TNM stage
 IA 344 19.9
 IB 196 11.3
 IIA 299 17.3
 IIB 283 16.4
 IIIA 340 19.7
 IIIB 187 10.7
 IIIC 81 4.7
LBVI   
 Present 353 20.4
 Absent 1187 68.6
 Unknown 190 11.2
Number of examined LNs
 ≤ 15 553 32.0
 > 15 1177 68.0
 Median (IQR) 21 (13–32)  
 Mean ± SD 23.8 ± 14.3  
Number of metastatic LNs
 Median (IQR) 1 (0–4)  
 Mean ± SD 3.3 ± 6.0  
  1. n, number of patients, SD standard deviation, IQR interquartile range, LBVI lymphatic and/or blood vessel invasion, LNs lymph nodes, UICC/AJCC Union for International Cancer Control/American Joint Committee on Cancer classification