Related Factors of Hp Infection in Physical Examination and Community Population in Hunan Province

The H. pylori infection was detected by carbon-13 urea breath test (13C-UBT), a delta over baseline (DOB) of ≥4.0 was considered positive for H. pylori, and a DOB\<4.0 was considered negative.

The related factors of H. pylori infection were investigated by questionnaire survey. The physical examination population participated in the questionnaires of the physical examination center, which included basic demographic characteristics and living habits, and filled out the questionnaires on the use of serving chopsticks at the same time. In the community, members of each eligible family were asked to complete a questionnaire including the details such family general information, basic information of every family member, personal living habits, past medical history, and so on.