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Chinese Journal of Infectious Diseases ; (12): 337-341, 2020.
Artículo en Chino | WPRIM | ID: wpr-867614

RESUMEN

Objective:To analyze the status of hepatitis B virus (HBV) infection in pregnant women in Taizhou City in recent years and the effect of immunization management of hepatitis B vaccine project on the status.Methods:The pregnant women hospitalized in Taizhou People′s Hospital, Taizhou Second People′s Hospital, Taizhou Traditional Chinese Medicine Hospital and Taixing People′s Hospital from 2014 to 2017 were enrolled. According to the HBV serological results, the pregnant women were divided into non-immune population, successful immunization population, previous HBV infection population, HBV infection population and atypical manifestation population. The year of immunization management for the implementation of the hepatitis B vaccine plan was 1992. The HBV infection status of the pregnant women was analyzed based on the year of delivery and vaccination status, respectively. Chi-square test and trend chi-square test were used for statistical analysis.Results:A total of 31 449 cases were included in this study, of which 13 203 (41.98%) were non-immunized, 10 123 (32.19%) were successfully immunized, 6 409 (20.38%) were previous HBV infected, 1 566(4.98%) were HBV infected, and 148(0.47%) cases were atypical manifestation. The negative rate of all HBV serological markers of pregnant women born before 1992 and after 1992 (including 1992) were 42.07%(10 794/25 657) and 41.59%(2 409/5 792), respectively, with no statistically significant difference ( χ2=0.44, P=0.51). The hepatitis B surface antibody (anti-HBs) positive rate of pregnant women born before 1992 was 28.95%(7 428/25 657), which was lower than 46.53%(2 695/5 792) of pregnant women born after 1992 (including 1992). The difference was statistically significant ( χ2=668.94, P<0.01), and showed an upward trend year by year ( χ2=602.11, P<0.01). The hepatitis B core antibody (anti-HBc) positive rate of pregnant women born after 1992 (including 1992) was 8.81%(510/5 792), which was lower than 22.99%(5 899/25 657) of pregnant women born before 1992, the difference was statistically significant ( χ2=589.10, P<0.01), and the overall trend was declining year by year ( χ2=478.72, P<0.01). The hepatitis B surface antigen (HBsAg) positive rate of pregnant women born before 1992 was 5.46%(1 402/25 657), which was higher than 2.83%(164/5 792) of pregnant women born after 1992 (including 1992), the difference was statistically significant ( χ2 =69.23, P <0.01), and the overall trend was decreasing ( χ2=49.25, P<0.01). Among pregnant women infected with HBV, the negative rate of hepatitis B e antigen (HBeAg) was 78.16%(1 224/1 566). Conclusions:Pregnant women with HBV infection in Taizhou City are mainly HBeAg negative. Hepatitis B vaccine immunization management significantly reduces the HBsAg positive rate and anti-HBc positive rate of pregnant women, and increases the positive rate of anti-HBs, while the rate of all HBV serum marker negative is not significantly decreased. Horizontal transmission may still be a risk factor for HBV present and previous infections.

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