<p>Introduction: The public health problem and study objectives were well stated.</p><p>Methods: The study design was well described. Although the author described the statistical procedures, the cut-off point was not stated clearly.</p><p>Results: The author followed a logical frame in reporting study findings. The author did not report measure of tendency and dispersion. risk factors for hepatitis B virus infection were appropriately described.</p><p>Conclusions: The authors concluded based on his results.&nbsp;</p>