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Table 1 Patient characteristics

From: Plasma mRNA expression levels of BRCA1 and TS as potential predictive biomarkers for chemotherapy in gastric cancer

Characteristic Pilot study Total cohort*
N = 40 N = 150
N (%) N (%)
Age, yr, median (range) 63 (40-83) 64 (29-84)
Sex   
  Male 31 (77.5) 110 (73.3)
  Female 9 (22.5) 40 (26.7)
Tumor site   
  Distal stomach 12 (30.0) 57 (34.0)
  Proximal stomach 19 (47.5) 62 (41.3)
  Whole stomach 9 (22.5) 37 (24.7)
Stage   
  I 4 (10.0) 17 (11.3)
  II 9 (22.5) 34 (22.7)
  III 25 (62.5) 94 (62.7)
  IV 2 (5.0) 5 (3.3)
Histological grade   
  1 0 3 (2.0)
  2 8 (20.0) 31 (20.7)
  3 22 (55.0) 71 (47.3)
  Mixed 1–2 0 2 (1.3)
  Mixed 2–3 10 (25.0) 43 (28.7)
Lymph node metastasis   
  No 9 (22.5) 35 (23.3)
  Yes 31 (77.5) 115 (76.7)
  1. *The total cohort consisted of the original 40 patients included in the pilot study plus an additional 110 patients.