Abstract:Objective To find out about the incidence of hepatitis B and its risk factors in a military unit.Methods New reported cases of hepatitis B onset were surveyed face to face in a military unit between January 2013 and June 2014, and possible risk factors were statistically analyzed.Results Among the 48 cases investigated, the misdiagnosis rate was 6.25% (3/48), and rate of repeated case reports was 4.17% (2/48). 43 cases of new-onset of hepatitis B and 43 cases of control were collected. Cases of hepatitis B were sporadic in each unit so that there was little chance of mass epidemic or outbreak. The age of patients ranged from 20 to 30, with an average age of 34.77. The main symptoms included fatigue, dark urine, anorexia, and jaundice. 55.81% of these cases were diagnosed (24/43) in one week and 16.28% (7/43) in six months or more. Chi-square test showed that hepatitis B vaccination (χ2=13.77,P<0.001) and eating out often (χ2=19.52,P<0.001) had a statistically significant correlation with the incidence of hepatitis B. According to multivariate logistic regression analysis, those who ate out frequently were at 16.310 times the risk of hepatitis B of those who did not (95% CI: 3.916~67.928) ; the unvaccinated were 3.891 times as vulnerable to hepatitis B as the vaccined (95% CI:1.021~14.925).Conclusion The diagnosis and treatment of hepatitis B should be improved while vaccination and education on prevention of hepatitis B should be popularized.
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GAO Dongqi, QIAO Yang, ZHAO Jingping, GAN Lu, SONG Wenjing, SHI Mengjing, MA Ke. Investigation on Cases of Hepatitis B in an Army and Analysis of Risk Factors for Infection. Journal of Preventive Medicine of Chinese People's Liberation Army, 2016, 34(6): 795-798.
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