Response to hepatitis B vaccine in Alaska Natives with chronic alcoholism compared with non-alcoholic control subjects
1990
Abstract purpose: This study was designed to determine if (1) alcoholics have a higher prevalence of hepatitis B virus (HBV) serologic markers than do non-alcoholic controls and (2) if they respond to hepatitis B vaccination in a manner similar to that of non-alcoholic controls. patients and methods: The study was designed as a case-control study, and 129 Alaska Natives were recruited. Alcoholics were recruited from inpatient wards, outpatient clinics, a soup kitchen serving the homeless, and several alcohol rehabilitation centers; control subjects were recruited primarily from among Alaska Native Hospital employees. A standardized questionnaire, the Alcohol Dependency Scale (ADS), was administered to all participants. Each participant was screened for hepatitis B serologic markers, had liver function studies performed, and was examined for evidence of liver disease. Participants seronegative for HBV markers received three doses of hepatitis B vaccine. Linear regression analysis was performed to compare the amount of alcohol intake and variables associated with liver disease with the response to hepatitis B vaccination and antibody levels achieved. Using an ADS score of greater than 13, 64 participants were classified as chronic alcoholics, and 60 were classified as controls. results: HBV seropositivity was found in 22 alcoholics (34.4%) and seven controls (11.7%). After adjusting for age and sex, this difference was significant (χ 2 mh = 6.57, df=1; p=0.012). Abnormal levels of liver transaminase occurred significantly more often in alcoholic participants than in control subjects (χ 2 mh = 4.91, df=1; p=0.026). Of 95 seronegative persons, 72 received three doses of hepatitis B plasma-derived vaccine. Alcoholic subjects and control subjects did not differ significantly in their response to vaccination. Only four alcoholics and two controls did not develop antibody to hepatitis B surface antigen (anti-HBs) after hepatitis B vaccination, and two alcoholics and three controls had anti-HBs levels less than 10 SRU by radioimmunoassay. Mean anti-HBs levels measured in milli-international units (mIU) for the 62 responders showed a decrease in the anti-HBs level with increasing age (p 10 mIU between alcoholics and controls younger than 45 years of age, but in persons greater than 45 years of age, alcoholics had a lower mean anti-HBs log 10 mIU level than did controls; this difference, however, was not significant (p >0.10). conclusion: Chronic alcoholics have a higher prevalence of HBV seromarkers than do age-matched controls. Seronegative alcoholics, especially those under age 45, respond well to hepatitis B vaccination, and such vaccination should be considered in all chronic alcoholic persons.
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