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Table 2 Demographic and histologic characteristics of H. pylori-infected patients with single nucleotide polymorphism analysis (n = 470)

From: Matrix metalloproteinase-3 promoter polymorphisms but not dupA-H. pylori correlate to duodenal ulcers in H. pylori-infected females

  Gastritis Duodenal ulcer Gastric ulcer p value
Parameters (n = 265) (n = 118) (n = 87)  
Age, mean (SD) (yr) 46.9 (13.7) 47.6 (14.0) 47.8 (11.7) NS
Gender, n (%)     
Female: Male 183 (69.1): 82 (30.9) 57 (48.3) : 61 (51.7) 36 (41.4) : 51 (58.6) p a < 0.05; p b < 0.05
Histology score, mean (SD)     
   (Antrum)     
AIS (range 1-3) 1.18 (0.99) 1.39 (0.95) 0.99 (1.03) p c < 0.05
CIS (range 0-3) 2.34 (1.01) 2.56 (0.89) 2.05 (1.17) p a < 0.05; p b < 0.05; p c < 0.05
   (Corpus)     
AIS (range 1-3) 0.85 (0.99) 0.72 (0.95) 0.86 (1.06) NS
CIS (range 0-3) 2.24 (0.86) 2.15 (0.83) 2.13 (0.89) NS
  1. Abbreviations: AIS, acute inflammation; CIS, chronic inflammation. The p value was determined by t test (age), χ2 test (gender) or Mann-Whitney U test (histology score). a indicated significance with p < 0.05 of such parameter between gastritis and duodenal ulcer; b between gastritis and gastric ulcer; c between duodenal ulcer and gastric ulcer. NS: no significant difference.