A study of gender-based variation in personality trait in young adults and its association with body mass index in an academic institute

Introduction: Personality encompasses enduring characteristics and behaviors that define an individual’s unique approach to life, including interests, values, self-concept, abilities, and thought patterns. These traits, influenced by the limbic and autonomic nervous systems, can impact behaviors and physiological states. Young adulthood (18–23 years) is a crucial period marked by significant personality development, which may influence body mass index (BMI). This study explores different personality traits and correlates them with gender and BMI to design significant mental health interventions. Aims and Objectives: This study aimed to examine gender-based differences in personality traits and their association with BMI. Materials and Methods: A cross-sectional study was conducted among 365 consenting young adults (220 males and 145 females) in an educational setting in eastern India. Participants completed the Eysenck Personality Questionnaire Revised-Short Form, assessing four personality dimensions: Extraversion, Neuroticism, Psychoticism, and the Lie scale. BMI was categorized per the World Health Organization criteria. Results: Extraversion was the most prevalent trait across both genders. Notably, significant gender differences were observed in neuroticism and psychoticism traits ( P < .001). Statistical analyses, including Chi-square, Pearson, Likelihood Ratio, and Fisher’s exact tests, confirmed these associations. The majority of participants fell within the normal BMI range. Extraversion showed a possible link with lower odds of being obese (odds ratio = 0.16, P = 0.052). Conclusion: Gender significantly influences personality traits such as extraversion, neuroticism, and psychoticism, impacting young adults’ mental health, recognizing these differences aids in designing targeted health interventions.