This study explored the level of knowledge and attitudes toward hepatitis B virus (HBV) infection and vaccination of adolescents in juvenile detention facilities and in schools in South Korea. A cross-sectional comparison design with a convenient sampling method was used. Participants in the study were 301 delinquent and 410 school adolescents. The results showed that knowledge of HBV infection among juvenile detention adolescents was significantly lower but there was no difference between groups in attitudes toward infection and vaccination.
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