Abstract
Introduction: The increasing usage of smartphones across the globe has resulted in considerable changes in people's daily lives, especially in terms of personality traits among adults. Research shows that the Big Five personality traits influence Problematic Mobile Phone Use (PMPU). Aim: To estimate the prevalence of PMPU using the Mobile Phone Problem Use Scale (MPPUS-10) and to evaluate the personality predictors of PMPU using the Big Five Inventory (BFI) questionnaire. Materials and Methods: A cross-sectional survey was conducted among 289 medical students at a rural tertiary care centre in Tamil Nadu, India from November 2021 to April 2022. The questionnaire consisted of three sections. The first section collected demographic characteristics, the second section included questions on the MPPUS-10, and the third section contained questions from the BFI questionnaire. Reliability analysis was conducted to assess the internal validity of the MPPUS-10 questionnaire. Exploratory factor analysis using principal component analysis with varimax rotation and Kaiser normalisation was performed to measure the structural validity of the MPPUS-10 scale. A multiple linear regression model was applied to determine the relationship between PMPU and the personality domains. Results: The prevalence of PMPU among medical students was found to be 106 (36.7%). Spearman's rank correlation revealed a negative correlation between agreeableness personality (r=- 0.307, p-value <0.001) and conscientiousness personality (r=-0.369, p-value <0.001) with PMPU. Additionally, a positive correlation was observed between neurotic personality and PMPU (r=0.325, p-value <0.001). Multiple linear regression analysis demonstrated that agreeableness, conscientiousness, and neuroticism significantly predicted 44.4% of the scores on the PMPU (F=23.276, p-value <0.001 at the 1% level). Therefore, individuals with lower levels of agreeableness, conscientiousness, and higher levels of neuroticism scored higher on the MPPUS-10 scale. Conclusion: The prevalence of PMPU among medical students was found to be high, requiring attention. Individuals with lower levels of agreeableness and conscientiousness, as well as higher levels of neuroticism, were more likely to exhibit PMPU.
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