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  • 标题:Caffeine Consumption and Sleep Quality in Australian Adults
  • 本地全文:下载
  • 作者:Emily J. Watson ; Alison M. Coates ; Mark Kohler
  • 期刊名称:Nutrients
  • 电子版ISSN:2072-6643
  • 出版年度:2016
  • 卷号:8
  • 期号:8
  • 页码:479-488
  • DOI:10.3390/nu8080479
  • 出版社:MDPI Publishing
  • 摘要:Caffeine is commonly consumed to help offset fatigue, however, it can have several negative effects on sleep quality and quantity. The aim of this study was to determine the relationship between caffeine consumption and sleep quality in adults using a newly validated caffeine food frequency questionnaire (C-FFQ). In this cross sectional study, 80 adults (M ± SD: 38.9 ± 19.3 years) attended the University of South Australia to complete a C-FFQ and the Pittsburgh Sleep Quality Index (PSQI). Caffeine consumption remained stable across age groups while the source of caffeine varied. Higher total caffeine consumption was associated with decreased time in bed, as an estimate of sleep time (r = −0.229, p = 0.041), but other PSQI variables were not. Participants who reported poor sleep (PSQI global score ≥ 5) consumed 192.1 ± 122.5 mg (M ± SD) of caffeine which was significantly more than those who reported good sleep quality (PSQI global score < 5; 125.2 ± 62.6 mg; p = 0.008). The C-FFQ was found to be a quick but detailed way to collect population based caffeine consumption data. The data suggests that shorter sleep is associated with greater caffeine consumption, and that consumption is greater in adults with reduced sleep quality.
  • 关键词:sleep hygiene; caffeine intake; sleep quantity; sleep quality; caffeine food frequency questionnaire sleep hygiene ; caffeine intake ; sleep quantity ; sleep quality ; caffeine food frequency questionnaire
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