The Tohoku journal of experimental medicine
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Tohoku J. Exp. Med. · Aug 2017
Secondhand Smoking Is Associated with Poor Mental Health in Korean Adolescents.
In Korea, the prevalence of depression is increasing in adolescents and the most common cause of death of adolescents has been reported as suicide. At a time of increasing predicament of mental health of adolescents, there are few studies on whether secondhand smoking is associated with mental health in adolescents. The objective of this study was to determine whether exposure to secondhand smoke is associated with mental health-related variables, such as depression, stress, and suicide, in Korean adolescents. ⋯ Compared with the non-exposed group, the odds ratios (OR) of depression, stress, suicidal ideation, suicidal planning and suicidal attempt in the secondhand smoking exposed group were 1.339, 1.192, 1.303, 1.437 and 1.505, respectively (all P < 0.001). When subjects were classified into two secondhand smoke exposure groups, with increasing secondhand smoking experience, higher was the OR for each mental health related variable, in a dose-response relation. Our findings suggest that secondhand smoking is associated with poor mental health such as depression, stress, and suicide, showing a dose-response relation in Korean adolescents.
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Tohoku J. Exp. Med. · Aug 2017
Retraction Of PublicationRetraction: Transcription Factor SOX9 Promotes Osteosarcoma Cell Growth by Repressing Claudin-8 Expression.
We reported "Transcription Factor SOX9 Promotes Osteosarcoma Cell Growth by Repressing Claudin-8 Expression" in Tohoku J. Exp. ⋯ After publication of the paper, we have become aware of the ethical violation in collecting the samples from some patients. We therefore wish to retract the paper and apologize for any inconvenience caused by the retraction.