Objectives: The purpose of this study is to examine the effects of family communication and university
environment on suicidal thoughts among university students, over and above the effects of personal
predictors. Methods: This study examined the effects of personal and environmental predictors using
hierarchical regression analysis. In the first model, socio-demographic characteristics predicted suicidal
thoughts. In the second model, depression, anxiety, and self-efficacy as personal predictors were added to
the first model. Finally, family communication―open communication and problem communication―and
university environment as environmental predictors were added to the second model. The data of 307
university students from Daegu and Gyeongbuk area were analyzed. Results: The results indicated that
open communication, problem communication, and university environment had significant effects on suicidal
thoughts, controlling for the socio-demographic characteristics and personal predictors. Conclusions: These
results imply that intervention for environments including family and university needs to be emphasized in
planning prevention for suicide among university students.