Table 1.

Demographic characteristics of patients with gastroduodenal lesions

Diagnosis*No. of patientsMean age (range)Sex ratio (M/F)Years of education, mean (SD)Ever smoking, no. (%)Ever drinking alcohol, no. (%)
Non–atrophic gastritis36848.0 (30-92)0.76.4 (4.5)146 (39.7)144 (39.1)
Atrophic gastritis1453.9 (30-75)0.84.9 (4.0)6 (42.9)6 (42.9)
Intestinal metaplasia11058.1 (30-82)0.54.5 (3.6)44 (40.0)42 (38.2)
Gastric dysplasia276.5 (65-88)1.04.0 (2.8)2 (100.0)1 (50.0)
Gastric cancer6561.2 (31-86)1.65.2 (4.2)37 (56.9)30 (46.1)
Duodenal ulcer5951.9 (30-80)1.16.0 (4.2)33 (55.9)27 (45.8)
Total61851.8 (30-92)271/3475.9 (4.3)268 (43.4)250 (40.5)
  • * Patients might have more than one pathology diagnosis in the six biopsies analyzed, but only the most severe was considered.

  • P < 0.05 (χ2 test) when compared with patients with non–atrophic gastritis.