Abstract:

Objective: To investigate the relationship between the living habits and HBV infection of Khitan descendants in Yunnan
Baoshan, and find out the risk factors or protective factors, to provide scientific evidence for the HBV prevention and control works.
Methods: The unified questionnaire survey were provided for researching Khitan descendants living habits. 5 mL serum samples were
collected to test the hepatitis B serological markers. Chi-square test and Logistic regression were used to analysis the relationship
between living habits and HBV infection of Khitan descendants. Results: 10 cases were HBsAg positive in 325 Khitan descendants，
the people whose HBsAg were positive were male. By factor analysis, gender was a possible risk factor for HBV infection. Sharing
towels, razors(P = 0.061), cultural differences (P = 0.093) were close. History of hepatitis B vaccination, high annual family income was
statistically significant (P < 0.05). Multivariate analysis showed that the hepatitis B vaccine was a protective factor (P < 0.05), and the
annual income of the family was a susceptible factor of HBV infection (P > 0.05). Conclusion: We should strengthen the health
education to the Khitan descendants, take the immune preventive measures, and popularize vaccination, protect susceptible
populations, and control the spread of hepatitis B infection.

Key words: Baoshan Khitan descendants, HBV infection, risk factors