ADHD-RELATED PROBLEMS AND DAILY LIFE IN JAPANESE COLLEGE STUDENTS: A RELATIONSHIP WITH SOME SLEEP AND AROUSAL PROBLEMS.
 
Sato, T., Hachinohe Junior College and Hatayama, T., Tohoku University, Japan
 
Some behavioral patterns related to attention-deficit/hyperactivity disorder (ADHD; DSM-IV) may influence the various kind of daily activities in some of the college students in Japan. This study was aimed at examining a relationship between three major ADHD-related problems, that is, inattention, hyperactivity, impulsivity, and some of the sleep and arousal problems. We used the College-level ADHD Questionnaire (CAQ; Nadeau, 1994), as well as another questionnaire including items related to morningness-eveningness, night sleeplessness, and daytime sleepiness in daily life and so forth. These questionnaires were administered to 361 Japanese college students. Averages of the items that belong to inattention categories in the CAQ were calculated to divide participants into four groups on the basis of the averages. Same data reduction and participants' grouping were also executed on the scores of the items that related to hyperactivity and impulsivity categories separately. Between these highest and lowest quarters, the scores of the items on eveningness, night sleeplessness, and daytime sleepiness were compared with t test (p < 0.05). These results indicated that in many of the items related to their sleep or arousal, the highest quarters of all three categories showed significantly larger value than the lowest of each. In conclusion, the college students who reported to have the ADHD-related problems in the CAQ seemed to suffer more severely from some of the sleep or arousal problems than their schoolmates who hardly reported.