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Table 1 Sociodemographic characteristics of 921 Mexican patients with chronic gastritis, gastric ulcer and gastric cancer

From: Helicobacter pylori vacA s1m1 genotype but not cagA or babA2 increase the risk of ulcer and gastric cancer in patients from Southern Mexico

  Diagnosis
  CG n = 767
n (%)
GU n = 115
n (%)
GC n = 39
n (%)
p value
Age (years)
 ≤20 years old 32 (4.2) 3 (2.6) 0 <0.001δ
 20–39 years old 218 (28.4) 20 (17.4) 9 (23.1)
 40–59 years old 348 (45.4) 48 (41.7) 9 (23.1)
 ≥60 years old 169 (22) 44 (38.3) 21 (53.8)
Gender n (%)
 Female 471 (61.4) 65 (56.5) 24 (61.5) 0.603Ф
 Male 296 (38.6) 50 (43.5) 15 (38.5)
Education n (%)
 College or higher 367 (47.9) 43 (37.4) 3 (7.7) <0.001δ
 High school 114 (14.9) 16 (13.9) 5 (12.8)
 Junior high school 90 (11.7) 5 (4.4) 4 (10.3)
 Elementary school 143 (18.6) 31 (26.9) 15 (38.5)
 Uneducated 53 (6.9) 20 (17.4) 12 (30.7)
Smoking habit n (%)
 No 441 (57.5) 53 (46.1) 20 (51.3) 0.060Ф
 Current or previous smoker 326 (42.5) 62 (53.9) 19 (48.7)
Alcohol drinking n (%)
 No 185 (24.1) 37 (32.2) 9 (23.1) 0.170Ф
 Drinker or exdrinker 582 (75.9) 78 (67.8) 30 (76.9)
Overcrowding n (%)
 No 477 (62.2) 90 (78.3) 25 (64.1) 0.004Ф
 Yes 290 (37.8) 25 (21.7) 14 (35.9)
  1. CG chronic gastritis, GU gastric ulcer, GC gastric cancer
  2. Ф X2 test; δ Exact Fisher test