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Table 1 Characteristics of the patients and tumors

From: Evaluation of the visibility of early gastric cancer using linked color imaging and blue laser imaging

Factors No. of patients or tumors (n = 82)
Sex ratio (M/F) 53/29
Age, years, mean ± SD 69.6 ± 11.4
Infection with Hp
 Positive 65 (79)
 Negative 0 (0)
 Eradicated 17 (21)
Tumor size, mm, mean ± SD 15.5 ± 11.1
Location of tumor
 Upper 25 (30)
 Middle 31 (38)
 Lower 26 (32)
Color
 Red 40 (49)
 Isochromatic 20 (24)
 White 22 (27)
Macroscopic type  
 0-IIa 26 (32)
 0-IIc 56 (68)
Histological type
 Differentiated 72 (88)
 Undifferentiated 10 (12)
Depth  
 Mucosa 74 (95)
 Submucosa 8 (5)
  (%)
  1. Hp, Helicobacter pylori