Odete Amaral1, António Garrido2, Carlos Pereira3, Nélio Veiga3, Carla Serpa4, Constantino Sakellarides4. 1. Escola Superior de Saúde de Viseu, CI&DETS, Instituto Politécnico de Viseu, Viseu, Portugal. Electronic address: mopamaral@gmail.com. 2. Centro Hospitalar Tondela-Viseu, Viseu, Portugal. 3. Escola Superior de Saúde de Viseu, CI&DETS, Instituto Politécnico de Viseu, Viseu, Portugal. 4. Escola Nacional de Saúde Pública, Universidade Nova de Lisboa, Lisboa, Portugal.
Abstract
INTRODUCTION: Inadequate sleep patterns and insomnia are frequently linked and represent common sleep disorders among adolescents. The present study provides data on sleep patterns and insomnia among Portuguese adolescents. MATERIAL E METHODS: In a cross-sectional study we evaluated 6,919 students from the 7th to the 12th grade from twenty-six secondary schools. Data was collected using a self-administered questionnaire. Insomnia was defined based on the Diagnostic and Statistical Manual of Mental Disorders IV criteria and daytime sleepiness was assessed with the Epworth Sleepiness Scale. Sleep patterns evaluated both sleep duration ("insufficient" sleep was defined as < 8 hours per night) and bedtime schedules and regularity. RESULTS: The prevalence of insomnia was 8.3%, insomnia symptoms 21.4% and insufficient sleep 29.3%. All prevalence were higher among girls (P<.001). Average sleep time, on weeknights, was 8:04±1:13 hours. On average adolescents went to bed at 22:18±1:47 hours, took 21 minutes to fall asleep and woke up at 7:15±0:35 hours. Only 6.4% of adolescents stated having a regular bedtime. The majority of adolescents (90.6%) reported having difficulty waking up, 64.7% experienced daytime sleepiness and 53.3% experienced sleep during classes. CONCLUSIONS: There are high prevalence of inadequate sleep patterns, insufficient sleep and insomnia among Portuguese adolescents. Insufficient sleep is associated with sleep patterns and social and behavioural factors. These results add to our knowledge of adolescent sleep worldwide.
INTRODUCTION: Inadequate sleep patterns and insomnia are frequently linked and represent common sleep disorders among adolescents. The present study provides data on sleep patterns and insomnia among Portuguese adolescents. MATERIAL E METHODS: In a cross-sectional study we evaluated 6,919 students from the 7th to the 12th grade from twenty-six secondary schools. Data was collected using a self-administered questionnaire. Insomnia was defined based on the Diagnostic and Statistical Manual of Mental Disorders IV criteria and daytime sleepiness was assessed with the Epworth Sleepiness Scale. Sleep patterns evaluated both sleep duration ("insufficient" sleep was defined as < 8 hours per night) and bedtime schedules and regularity. RESULTS: The prevalence of insomnia was 8.3%, insomnia symptoms 21.4% and insufficient sleep 29.3%. All prevalence were higher among girls (P<.001). Average sleep time, on weeknights, was 8:04±1:13 hours. On average adolescents went to bed at 22:18±1:47 hours, took 21 minutes to fall asleep and woke up at 7:15±0:35 hours. Only 6.4% of adolescents stated having a regular bedtime. The majority of adolescents (90.6%) reported having difficulty waking up, 64.7% experienced daytime sleepiness and 53.3% experienced sleep during classes. CONCLUSIONS: There are high prevalence of inadequate sleep patterns, insufficient sleep and insomnia among Portuguese adolescents. Insufficient sleep is associated with sleep patterns and social and behavioural factors. These results add to our knowledge of adolescent sleep worldwide.
Authors: Dario A Dornbierer; Firat Yerlikaya; Rafael Wespi; Martina I Boxler; Clarissa D Voegel; Laura Schnider; Aslihan Arslan; Diego M Baur; Markus R Baumgartner; Tina Maria Binz; Thomas Kraemer; Hans-Peter Landolt Journal: Sci Rep Date: 2021-10-05 Impact factor: 4.379
Authors: Zuzana Dankulincova Veselska; Daniela Husarova; Michaela Kosticova Journal: Int J Environ Res Public Health Date: 2021-06-04 Impact factor: 3.390