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Table 1 A description of the reference standard M1 and non-M1 cohort

From: Validating an algorithm to identify metastatic gastric cancer in the absence of routinely collected TNM staging data

Characteristic Reference Standard M1
1 (n = 1285) 0 (n = 1081)
Age
  < 50 10.9 6.8
 50–54 6.9 5.9
 55–59 8.9 8.6
 60–64 10.4 10.5
 65–69 13.3 11.8
 70+ 49.6 56.2
Female 35 35.5
Charlson Category
 No Prev Hosp 56.9 47.8
 0 28.6 30.6
 1 12.5 4.7
 2+ 6.9 11
Tumour Location
 Distal 32.9 43.8
 Entire 9.8 5.1
 GEJ 27.3 23.5
 Middle 15.6 17.1
 Proximal 9.8 6.9
 Unknown 4.7 3.6
Deaths
 One year 71.9 32.5
 Five years 94.6 64.7