Disorders of arousal and sleep-related bruxism among Japanese adolescents: a nationwide representative survey.

Osamu Itani, Yoshitaka Kaneita, Maki Ikeda, Shuji Kondo, Ryuichiro Yamamoto, Yoneatsu Osaki, Hideyuki Kanda, Kenji Suzuki, Susumu Higuchi, Takashi Ohida

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The main objective of our study was to clarify the prevalence of disorders of arousal (confusional arousals, sleepwalking, sleep terrors) and sleep-related bruxism (teeth grinding) and their associated factors among Japanese adolescents. Our study was designed as a cross-sectional sampling survey. The targets were students attending junior and senior high schools throughout Japan. The questionnaire asked for personal data and information on lifestyle, depressive state, and sleep status including the frequency of experiencing disorders of arousal and sleep-related bruxism. A total of 99,416 adolescents responded. The overall response rate was 63.7%, and 98,411 questionnaires were subjected to analysis. The prevalence of disorders of arousal was 7.1% (95% confidence interval [CI], 6.9-7.3%) among boys and 7.7% (95% CI, 7.5-7.9%) among girls. The prevalence of sleep-related bruxism was 2.3% (95% CI, 2.2-2.4%) among boys and 3.0% (95% CI, 2.8-3.2%) among girls. The factors associated with disorders of arousal were the grade in school, smoking habit, alcohol consumption, naptime (min), breakfast habit, participation in club activities, sleep duration, difficulty initiating sleep, nocturnal awakening, early morning awakening, subjective sleep assessment, snoring, decrease in positive feelings, and depression (all p<.001). The factors associated with sleep-related bruxism were gender, smoking habit, nocturnal awakening, snoring, early morning awakening, decrease in positive feelings, and depressive feelings (all p<.001). If disorders of arousal or sleep-related bruxism are observed in an adolescent, his or her smoking habit, alcohol consumption, sleep status, and depressive state should be considered.

Original languageEnglish
Pages (from-to)532-541
Number of pages10
JournalSleep medicine
Volume14
Issue number6
Publication statusPublished - Jun 2013
Externally publishedYes

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Sleep Bruxism
Arousal
Sleep
Habits
Confidence Intervals
Snoring
Emotions
Smoking
Sleep Initiation and Maintenance Disorders
Alcohol Drinking
Sleep Arousal Disorders
Night Terrors
Somnambulism
Breakfast
Life Style
Tooth
Japan
Cross-Sectional Studies
Surveys and Questionnaires
Depression

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Itani, O., Kaneita, Y., Ikeda, M., Kondo, S., Yamamoto, R., Osaki, Y., ... Ohida, T. (2013). Disorders of arousal and sleep-related bruxism among Japanese adolescents: a nationwide representative survey. Sleep medicine, 14(6), 532-541.

Disorders of arousal and sleep-related bruxism among Japanese adolescents : a nationwide representative survey. / Itani, Osamu; Kaneita, Yoshitaka; Ikeda, Maki; Kondo, Shuji; Yamamoto, Ryuichiro; Osaki, Yoneatsu; Kanda, Hideyuki; Suzuki, Kenji; Higuchi, Susumu; Ohida, Takashi.

In: Sleep medicine, Vol. 14, No. 6, 06.2013, p. 532-541.

Research output: Contribution to journalArticle

Itani, O, Kaneita, Y, Ikeda, M, Kondo, S, Yamamoto, R, Osaki, Y, Kanda, H, Suzuki, K, Higuchi, S & Ohida, T 2013, 'Disorders of arousal and sleep-related bruxism among Japanese adolescents: a nationwide representative survey.', Sleep medicine, vol. 14, no. 6, pp. 532-541.
Itani O, Kaneita Y, Ikeda M, Kondo S, Yamamoto R, Osaki Y et al. Disorders of arousal and sleep-related bruxism among Japanese adolescents: a nationwide representative survey. Sleep medicine. 2013 Jun;14(6):532-541.
Itani, Osamu ; Kaneita, Yoshitaka ; Ikeda, Maki ; Kondo, Shuji ; Yamamoto, Ryuichiro ; Osaki, Yoneatsu ; Kanda, Hideyuki ; Suzuki, Kenji ; Higuchi, Susumu ; Ohida, Takashi. / Disorders of arousal and sleep-related bruxism among Japanese adolescents : a nationwide representative survey. In: Sleep medicine. 2013 ; Vol. 14, No. 6. pp. 532-541.
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