1 Pol Ann Med. [in Press] Research paper Supinya Sono , Jutinun Kittivarapong , Natchanok Chawakitchareon , Nitchanan Saenphantree , Tawan Limamornrat , Thanatip Sangmanee , Maytavee Jedtanajaroenchai , Saengthian Theerakitpaisal Department of Family and Preventive medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand Corresponding author: Supinya Sono, Department of Family and Preventive Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand. E-mail address: supinya.so@psu.ac.th Factors associated with academic performance among clinical year medical students: A cross-sectional study in a Southern Thailand medical school article info Article history Received: November 29, 2021 Accepted: February 16, 2022 Available online: April 4, 2022 Keywords Medical students Academic performance Medical education Doi https://doi.org/10.29089/146748 User license This work is licensed under a Creative Commons Attribution – NonCommercial – NoDerivatives 4.0 International License. AbstrAct Introduction: Medical education is well known for its diffculty. However, one of the ultimate aims of medical education is academic success. Therefore, under- graduate medical students are facing multiple factors during academic courses that correlate with their academic performance. A i m : We aimed to study factors associated with academic performance among clinical year medical students in a Southern Thailand medical school. Material and methods: 168 medical students in the fourth and ffth year of a southern Thailand tertiary teaching hospital participated in this cross-sectional questionnaire-based study; over March 2021. We developed the questionnaire to cover all factors affecting academic performance, indicated by accumulated grade point average (GPAX). The data were analyzed using the R Program (v. 4.0.4). R e s u l t s a n d d i s c u s s i o n : Of 168 medical students, 55.5% were women. Me- dian GPAX was 3.22. The multivariate analysis showed that a higher GPAX was associated with time spent on study more than 4 h per day (P = 0.013), time spent on social networks more than 4 h per day (P = 0.004), strong motivation to become specialists (P = 0.007) and having a good relationship with family (P = 0.034). Conclusions: Medical students' academic achievement was associated with increased study hours, time spent on social networks, motivation to become specialists, and having a good relationship with the family. However, we recom- mend further longitudinal studies to evaluate and confrm factors that affect academic performance. Journal homepage: htps://www.paom.pl Polish Annals of Medicine