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Table 3 Comparison of the characteristics of patients with Helicobacter pylori culture positive between gastric cancer and non-cancer group in Vietnam

From: Advanced non-cardia gastric cancer and Helicobacter pylori infection in Vietnam

  Cancer Non cancer
All cases Hanoi Ho Chi Minh All cases Hanoi Ho Chi Minh
Mean age 61.66 ± 13.3a 65.02 ± 13.32b 59.72 ± 13.98c 44.62 ± 13.04a 44.28 ± 12.97b 45 ± 13.24c
Gender
 Male 85 (75.9%)a 33 (80.5%) 52 (73.2%)c 47 (45.6%)a 34 (63%)d 13 (26.5%)cd
 Female 27 (24.1%) 8 (19.5%) 19 (26.8%) 56 (54.4% 20 (37%) 36 (73.5%)
CagA
 Western-type 2 (1.8%) 1 (2.4%) 1 (1.4%) 4 (4.1%) 1 (1.9%) 3 (6.5%)
 East Asian-type 110 (98.2%) 40 (97.6%) 70 (98.6%) 94 (95.9%) 51 (98.1%) 43 (93.5%)
Pre-EPIYA
 18 bp deletion-type 94 (85.5%) 33 (84.6%) 61 (85.9%) 80 (77%) 41 (76%) 39 (80%)
 39 bp deletion-type 13 (11.8%) 4 (10.2%) 9 (12.7%) 13 (13%) 9 (17%) 4 (8%)
 No deletion-type 3 (2.7%) 2 (5.1%) 1 (1.4%) 5 (5%) 3 (6%) 2 (4%)
vacA genotype
 s region
  s1 111 (99.1%) 40 (97.6%) 71 (100%) 102 (99%) 53 (98.1%) 49 (100%)
  s1s2 1 (0.9%) 1 (2.4%) 0 1 (1%) 1 (1.9%) 0
 m region
  m1 77 (68.8%)a 29 (70.7%) 48 (67.6%)c 44 (44.9%)a 29 (56.9%)d 15 (31.9%)cd
  m2 35 (31.2%) 12 (29.3%) 23 (32.4%) 54 (55.1%) 22 (43.1%) 32 (68.1%)
  1. aIndicates a statistically significant difference between all GC cases vs all non-GC cases at P < 0.05
  2. bIndicates a statistically significant difference between GC cases vs non-GC cases in Hanoi at P < 0.05
  3. cIndicates a statistically significant difference between GC cases vs non-GC cases in Ho Chi Minh at P < 0.05
  4. dIndicates a statistically significant difference between non-GC cases in Hanoi vs non-GC cases in Ho Chi Minh at P < 0.05