RESUMO
Introduction: Viruses are the most common causative agents of hepatitis today and infect many millions of individuals annually. Viral hepatitis encompasses several diseases and represents a global health problem. It induces major morbidity and mortality and places enormous demands on economic and medical resources.Aim of the Study:Analysis of Anti Hbs Titre in Unimmunised Adolescent Children in Correlation with Socio-Demographic Profile.Materials and Methods:The study was conducted in the Department of Pediatrics at Sree Balaji Medical College and Hospital, Chennai from April 2017 to March 2018.Vaccinated and unvaccinated (for Hepatitis B vaccine) adolescents between the age group of 10-19 years, who attended the department of Pediatrics, were included in this study.160 adolescents who were vaccinated with Hepatitis B vaccine and 160 adolescents who were unvaccinated with Hepatitis B vaccine in the age group of 10-19 years. A total of 320 adolescents were included in the study. The correlation was done between two group based on socio-demographic data.Results:Among the mothers, 10.93% (35) were illiterates, 25.62% (82) had finished primary school. 33.44% (107) and 21.56%(69) had done middle school and higher secondary school (HSS) respectively. 8.45% (27) were graduates.In the study it was found that 7.19% (23) of fathers were illiterates, 23.44% (75) had stopped with primary school and 18.43%(59) with middle school. 34.69% (111) have done HSS and 16.25% (52) were graduates.Of total adolescents who participated in 25.63% (82) were from rural areas and 74.37% (238) were from urban areas.Among participants, 49.37% (158) belong to lower and 30.63% (98) belonged to lower middle class. The middle class andthe upper middle class had 9.06%(29) and 10.94% (35) respectively.Conclusion: The findings of the present study show the need for catch up vaccination among the adolescent's population, who missed their routine immunization with Hepatitis B vaccine. For health care professionals, this study is a evidence that stresses more about theimportance of providing Hepatitis B vaccination among adolescents.