Hepatitis B virus among Chadian students

Published: 31 March 2023| Version 2 | DOI: 10.17632/8kjspbs4vg.2


Data obtained from a cross-sectional study among students in N'Djamena, Chad. This study aimed to determine the prevalence of HBV and identify risk factors among students in N'Djamena, Chad.


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A list of all faculties of the two largest universities of N’Djamena were obtained from its respective administrations. Based on number of students in faculties of the two largest universities of N’Djamena , students who volunteered to participate in the study were enrolled according to consecutive sampling. The sample size was calculated using the single population following formula n= (Zα/2) ² P (1-P) / i². Given that there is no similar study in a student environment in Chad, a prevalence of 50%, a Z score value of 1.96 with an alpha level of 0.05 (95% confidence) and a relative 10% precision. A minimum sample size of 422 students was calculated. Nevertheless, we interviewed and collected sample from 457 students. The sample size calculated was distributed proportionally to the number of students in faculties. (Faculty of Languages, Letters, Arts and Communication (75 students), Faculty of Educational Sciences (80 students), Faculty of Exact and Applied Sciences (50 students), Faculty of Economics and Management (88 students), Faculty of Human and Social Sciences (75 students) and University of Emi Koussi (50 students)).


Universite Cheikh Anta Diop


Hepatitis Virology