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Table 1 Patient characteristics in the study

From: Nomogram for predicting the survival of gastric adenocarcinoma patients who receive surgery and chemotherapy

CharacteristicsTraining set (n = 4034)Validation set (n = 1729)
n%n%
age (years)
 Mean62.8. ± 11.662.5 ± 11.4
 Range22–9217–94
Sex
 Male2905.072.01285.074.3
 Female1129.028.0444.025.7
Race
 White2805.069.51215.070.3
 Black516.012.8207.012.0
 Others713.017.7307.017.7
Marital
 Married2811.069.71191.068.9
 Single/Domestic Partner475.011.8239.013.8
 DWS748.018.5299.017.3
Prime Site0.0
 cardia1698.042.1756.043.7
 pylorus1392.034.5571.033.0
 others or primary site unknown944.023.4402.023.3
Grade
 Well131.03.255.03.2
  Moderately1353.033.5583.033.7
 Poorly2471.061.31053.060.9
 Undifferentiated79.02.038.02.2
Primary T category
 T1353.08.8141.08.2
 T22267.056.2984.056.9
 T31093.027.1477.027.6
 T4321.08.0127.07.3
Primary N category
 N0925.022.9373.021.6
 N12145.053.2939.054.3
 N2728.018.0317.018.3
 N3236.05.9100.05.8
Primary M category
 M03614.089.61558.090.1
 M1420.010.4171.09.9
Summary stage
 Localized565.014.0225.013.0
 Regional2915.072.31281.074.1
 Distal554.013.7223.012.9
Radiation recode0.0
 Yes1800.044.6772.044.7
 No/Unknown2234.055.4957.055.3
RNE
 mean18.2 ± 11.918.2 ± 11.7
 range1–871–77
RNP
 median22
 range0–790–51
AJCC
 I846.021.0355.020.5
 II1333.033.0574.033.2
 III1078.026.7477.027.6
 IV777.019.3323.018.7
  1. Abbreviations; RNE Number of regional nodes examined, DSW divorced & separated &widowed, RNP Number of regional nodes positive, AJCC American Joint Committee on Cancer