Blood group- and gender-wise comparison of big five models of personality among medical students

Background: Blood group has been found to associate with different traits, behavioral types as wells as proneness to certain diseases. Gender-wise differences in personality and behavior are also likely. Aim and Objective: In this study, we have compared personality factors of medical students of different blood groups using big five models of personality. We have also studied gender-wise differences in personality of medical students. Materials and Methods: In total, 246 medical students were recruited to participate in this study. Personality traits were assessed by NEO five-factor inventory (NEO-FFI), consisting of five subclasses: neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness. Blood group- and gender-wise comparison of five personality factors were performed using one way ANOVA with post hoc Tukey HSD and independent t-test, respectively. Results: There were no significant differences of personality scores of the big five personality factors among students of different blood groups. Females had a higher score than male participants in agreeableness (P = 0.002). Scores of other personality factors were comparable in both groups. Conclusion: We conclude that blood group-wise differences in personality factors may not be observed in medical students, but females may be more agreeable than male students.