Journal of clinical gastroenterology · 2010
The clinical presentation of chronic hepatitis B virus infection in Asian Americans: a single center retrospective study.
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Mellen Jonathan S, Xia Victor W, Hashemzadeh Mehrtash, Imagawa David, Jamal Mazen, Hoefs John, Hu Ke-Qin
Аннотация
BACKGROUND: The clinical course of chronic hepatitis B virus (HBV) infection varies with ethnicity. Little is known about the clinical presentation of chronic HBV infection in Asian Americans.
OBJECTIVES: To define the clinical presentation of chronic HBV infection in Asian Americans.
METHODS: This is a retrospective study that used systematic chart review and statistical analysis to investigate 213 Asian-American patients with chronic HBV infection who presented to a university medical center.
RESULTS: This cohort included 55.8% male patients, 97.9% were born outside the US, and 52.3% reported a family history of HBV infection. Of the 56 patients with liver biopsy, 34.0% had stage 3 to 4 fibrosis. In patients with available data, 21.5% were hepatitis B e antigen positive [HBeAg (+)] and 31.1% had HBV DNA levels >1 x 10(6) copies/mL. Patients with HBeAg (+) HBV infection were diagnosed at a younger age (P=0.002) and with higher alanine aminotransferase (P=0.001) and HBV DNA (P=0.001) levels. Although only 3.3% presented with obesity (ie, body mass index >or=30 kg/m2), 43.4% had evidence of hepatic steatosis. Presentation of hepatocellular carcinoma was associated with an older age at diagnosis (P<0.001), male sex (P<0.001), tobacco use (P<0.001), a greater degree of fibrosis on liver biopsy (P=0.01), and higher alanine aminotransferase, aspartate aminotransferase (P<0.001), and a fetoprotein (P<0.001) levels.
CONCLUSIONS: Chronic HBV infection in foreign-born Asian Americans was characterized by a low rate of HBeAg (+) and male predominance as well as high rates of family history of HBV infection, hepatic fibrosis, and hepatic steatosis.
OBJECTIVES: To define the clinical presentation of chronic HBV infection in Asian Americans.
METHODS: This is a retrospective study that used systematic chart review and statistical analysis to investigate 213 Asian-American patients with chronic HBV infection who presented to a university medical center.
RESULTS: This cohort included 55.8% male patients, 97.9% were born outside the US, and 52.3% reported a family history of HBV infection. Of the 56 patients with liver biopsy, 34.0% had stage 3 to 4 fibrosis. In patients with available data, 21.5% were hepatitis B e antigen positive [HBeAg (+)] and 31.1% had HBV DNA levels >1 x 10(6) copies/mL. Patients with HBeAg (+) HBV infection were diagnosed at a younger age (P=0.002) and with higher alanine aminotransferase (P=0.001) and HBV DNA (P=0.001) levels. Although only 3.3% presented with obesity (ie, body mass index >or=30 kg/m2), 43.4% had evidence of hepatic steatosis. Presentation of hepatocellular carcinoma was associated with an older age at diagnosis (P<0.001), male sex (P<0.001), tobacco use (P<0.001), a greater degree of fibrosis on liver biopsy (P=0.01), and higher alanine aminotransferase, aspartate aminotransferase (P<0.001), and a fetoprotein (P<0.001) levels.
CONCLUSIONS: Chronic HBV infection in foreign-born Asian Americans was characterized by a low rate of HBeAg (+) and male predominance as well as high rates of family history of HBV infection, hepatic fibrosis, and hepatic steatosis.
Предметные рубрики MeSH
Academic Medical CentersAdolescentAdultAge FactorsAgedAlanine TransaminaseAsianAspartate AminotransferasesCarcinoma, HepatocellularDNA, ViralFatty LiverFemaleHepatitis B e AntigensHepatitis B, ChronicHumansLiver CirrhosisLiver NeoplasmsMaleMiddle AgedObesityRetrospective StudiesRisk FactorsSex FactorsSmokingYoung Adultalpha-Fetoproteins