Akiyoshi Shimura1, Sakai Hideo2, Yoshikazu Takaesu3, Ryota Nomura4, Yoko Komada5, Takeshi Inoue3. 1. Department of Psychiatry, Tokyo Medical University, Tokyo, Japan; Department of Sleep and Psychiatry, Kanno Hospital, Saitama, Japan. Electronic address: sim@tokyo-med.ac.jp. 2. Tokyo Gakugei University Senior High School, Tokyo, Japan. 3. Department of Psychiatry, Tokyo Medical University, Tokyo, Japan. 4. Faculty of Education, The University of Tokyo, Tokyo, Japan. 5. Liberal Arts, Meiji Pharmaceutical University, Tokyo, Japan.
Abstract
OBJECTIVE: Sleep affects adolescents in various ways. However, the effects of multiple factors on sleep hygiene remain unclear. A comprehensive assessment of the effects of life habits on sleep in high-school students was conducted. METHODS: A cross-sectional survey of 344 high school students (age range 15-17; 171 boys, 173 girls) in Tokyo, Japan was conducted in 2015. Complete responses were provided by 294 students. Demographic variables, Pittsburgh Sleep Quality Index (PSQI), diurnal type scale, Pediatric Daytime Sleepiness Scale (PDSS), and life habits such as dinnertime, viewing electronic displays, caffeine intake, sunlight in the morning, and the brightness of the room in the night were asked. RESULTS: The mean scores were PSQI: 5.9 (±2.3), PDSS: 19.0 (±5.8), and the diurnal type scale: 16.7 (±3.4). Using an electronic display in bed (OR = 3.01; (95%CI) 1.24-7.30), caffeine intake at night always (OR = 2.22; 1.01-4.90), and waking up before dawn (OR = 3.25; 1.34-7.88) were significantly associated with sleep disturbance. Irregular timing of the evening meal (OR = 2.06; 1.10-3.84) and display viewing within 2 h before bedtime (OR = 2.50; 1.01-6.18) or in bed (OR = 3.60; 1.41-9.21) were significantly associated with excessive daytime sleepiness. Using an electronic display within 2 h before bedtime (OR = 2.64; 1.10-6.38) or in bed (OR = 3.50; 1.40-8.76) and a living room which is bright at night (OR = 1.89; 1.06-3.36) were significantly associated with eveningness. CONCLUSION: Each type of sleep-related problem had its own associated life habit factors.
OBJECTIVE: Sleep affects adolescents in various ways. However, the effects of multiple factors on sleep hygiene remain unclear. A comprehensive assessment of the effects of life habits on sleep in high-school students was conducted. METHODS: A cross-sectional survey of 344 high school students (age range 15-17; 171 boys, 173 girls) in Tokyo, Japan was conducted in 2015. Complete responses were provided by 294 students. Demographic variables, Pittsburgh Sleep Quality Index (PSQI), diurnal type scale, Pediatric Daytime Sleepiness Scale (PDSS), and life habits such as dinnertime, viewing electronic displays, caffeine intake, sunlight in the morning, and the brightness of the room in the night were asked. RESULTS: The mean scores were PSQI: 5.9 (±2.3), PDSS: 19.0 (±5.8), and the diurnal type scale: 16.7 (±3.4). Using an electronic display in bed (OR = 3.01; (95%CI) 1.24-7.30), caffeine intake at night always (OR = 2.22; 1.01-4.90), and waking up before dawn (OR = 3.25; 1.34-7.88) were significantly associated with sleep disturbance. Irregular timing of the evening meal (OR = 2.06; 1.10-3.84) and display viewing within 2 h before bedtime (OR = 2.50; 1.01-6.18) or in bed (OR = 3.60; 1.41-9.21) were significantly associated with excessive daytime sleepiness. Using an electronic display within 2 h before bedtime (OR = 2.64; 1.10-6.38) or in bed (OR = 3.50; 1.40-8.76) and a living room which is bright at night (OR = 1.89; 1.06-3.36) were significantly associated with eveningness. CONCLUSION: Each type of sleep-related problem had its own associated life habit factors.
Authors: MoezAlIslam E Faris; Michael V Vitiello; Dana N Abdelrahim; Leila Cheikh Ismail; Haitham A Jahrami; Sharfa Khaleel; Maryam S Khan; Ayman Z Shakir; Ayesha M Yusuf; Alyaa A Masaad; Ahmed S Bahammam Journal: Sleep Breath Date: 2021-10-06 Impact factor: 2.655
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Authors: Laura Oliveira-Silva; Tiago Peçanha; Rafael Y Fecchio; Rafael A Rezende; Andrea Abreu; Giovânio Silva; Décio Mion-Junior; José Cipolla-Neto; Claudia L M Forjaz; Leandro C Brito Journal: J Clin Hypertens (Greenwich) Date: 2020-08-02 Impact factor: 3.738