en <span style=font-size:11pt><span style=text-justify:inter-ideograph><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black>Aims:</span></span></span></b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black> Approximately 49% of pregnancies in adolescents aged 15-19 years are mistimed. Significantly in Jambi City, this trend has increased. It reflects adolescents lack of understanding about healthy living, the risks of sexual relations, and the rejection of unwanted relationships. This study aimed to determine the effect of counseling using videos and leaflets on adolescents' knowledge about the impact of mistimed pregnancy.</span></span></span></span></span></span></span><br> <span style=font-size:11pt><span style=text-justify:inter-ideograph><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black>Materials & Methods:</span></span></span></b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black> This quasi-experimental study, with a pre-test and post-test with a control group design, was conducted from January to June 2021 in the work area of the Penyengat Olak Public Health Center, Jambi City, Indonesia. Ninety-six adolescents participated in the study and were divided into groups with video intervention and leaflet education, totaling 48 adolescents each. Research data were analyzed using the analysis of covariance test.</span></span></span></span></span></span></span><br> <span style=font-size:11pt><span style=text-justify:inter-ideograph><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black>Findings:</span></span></span></b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black> A significant increase was observed in student's knowledge after education using videoeo media, with a different mean score of 36 (p=0.001). Also, there was a significant increase in student's knowledge after receiving an education using leaflet media, with a different mean score of 24 (p=0.001).</span></span></span></span></span></span></span><br> <span style=font-size:11pt><span style=text-justify:inter-ideograph><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black>Conclusion:</span></span></span></b><span style=font-size:10.0pt><span cambria= style=font-family:><span style=color:black> Education using video media is more effective than leaflet media in increasing adolescents' knowledge about mistimed pregnancy.</span></span></span></span></span></span></span><br> Knowledge,Pregnancy,Adolescent,Audiovisual Aid,Learning, 183 187 http://daneshafarand.org/browse.php?a_code=A-10-74874-1&slc_lang=en&sid=4