Prevalence, Infectivity, and Associated Risk Factors of Hepatitis B Virus among Pregnant Women in Yirgalem Hospital, Ethiopia: Implication of Screening to Control Mother-to-Child Transmission

Abstract

Background Hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) positive mother has up to 90% likelihood of mother-to-child transmission (MTCT) of hepatitis B virus (HBV) to newborns in the absence of any prophylaxis or antiviral therapy utilization. However, routine antenatal screening and intervention strategies are not yet practiced in Ethiopia. Therefore, this study was conducted to determine the prevalence, infectivity, and associated risk factors of HBV among pregnant women. Methods A cross-sectional study was conducted from October 2015 to August 2016 in Yirgalem Hospital. A total of 475 pregnant women were recruited, and data on sociodemography and potential risk factors were collected using a structured questionnaire. In addition, blood samples were tested for HBsAg, and HBsAg positive samples were retested for HBeAg using commercially available strip test. The status of HIV was collected from the records. Results The seroprevalence of HBsAg was 34 (7.2%), of whom 13 (38.8%) were positive for HBeAg. The prevalence of HIV infection was 10.1% (48/475). Ten out of 34 HBV positive cases (29.4%) were coinfected with HIV. The overall HBV/HIV coinfection rate was 2.1% (10/475). Women with history of multiple sexual partners and being HIV positive were significantly associated with HBsAg positivity. Among the study participants, 35.4% were aware of MTCT of HBV and only 12 (2.5%) have taken HBV vaccine. Conclusions High prevalence of HBsAg and HBeAg as well as low awareness and practices of HBV prevention methods suggests that perinatal transmission of HBV might be the prevailing mode of HBV transmission in the study area. Thus, screening of all pregnant women, particularly those who had history of multiple sexual partners and HIV coinfection, and provision of health education about HBV prevention methods are inevitable.

Hepatitis B and C viruses’ infection and associated factors among pregnant women in the Amhara region, Ethiopia: implications for prevention of vertical transmission.

“…Pregnant women with multiple sexual partners had 3 times (AOR3.2; 95% CI: 1.3-7.6%) more likely to develop HBV infection than their counterparts. This nding is similar to other studies [17,24,[40][41][42][43]. Blood transfusion has been recognized as a major risk factor for transmission of HBV throughout the world.…”

“…This is in line with studies done in Addis Ababa and Arba Minch, Ethiopia [4,24]. However, this is contrary to other studies [39,40]. The observed differences might be due to variations in sample size of study participants, safety precaution, and culture.…”

“…However, our ndings are higher than those of studies done in the east Wolega zone 2.4%, Dawuro 3.5%, Addis Ababa 3%, Eritrea 3.2%, Germany 0.48%, Turkey 2.1%, and China 3.2% [28][29][30][31][32][33][34]. On the other hand, our ndings are lower than those studies done in Dire Dewa 8.4%, Mekele 8%, Hawasa 7.8%, Yirgalem 7.2%, Gambella 7.9%, Harar 6.9%, Tigray 5.5%, Gambia 9.2%, Tazania 8.03%, Cameroon 6.6%, and Ghana 12.9% [16,18,[35][36][37][38][39][40][41][42][43]. There is a variation among the prevalence's of our study with the studies that were conducted around the globe.…”

“…This is similar to previous studies done elsewhere [17,18,34]. However, inconsistent with other studies [40][41][42]. In fact, in Ethiopia, blood and blood products have been screened for HBV, HCV, HIV, syphilis, and malaria since 2001 [6].…”

“…This is similar to the study done in Tigray, Ethiopia [43]. In contrast, this is inconsistent with other studies [24,40]. The variations might be due to differences, sample size, and awareness of study participants regarding transmission methods.…”