Table 1.

Demographic informations of patients studied

Patients included	306
Endoscopies performed	282 (92%)
Positive H. pylori	144 (54%)
Age-mean years	44
Range	16 – 87
Age > 48	121 (42%)
Male gender	98 (35%)
Race- white	203 (72%)
Born in São Paulo	120 (43%)
Smokers	45 (16%)