Caffeine Consumption and Sleep Quality in Australian Adults
Watson EJ, Coates AM, Kohler M, Banks S
Nutrients · 65 citations
How it was studied
- Design
- Cross-sectional study (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Independent funding
- University or hospital
- University of South Australia
Based on 1 listed funder(s) and full-text disclosure statement.
Publication
- Published
- 2016-08-04 · Nutrients · vol. 8 · issue 8 · p. 479
- Publisher
- Multidisciplinary Digital Publishing Institute
- Cited
- 108 citations · more than 95% of similar papers · 5.0× the field average
- Impact
- Top 10% most cited in its field
- References
- 28 works
- Access
- Open access (journal) · CC-BY
- Research areas
- Sleep and related disorders · Coffee research and impacts · Sleep and Work-Related Fatigue
- Keywords
- Caffeine, Sleep quality, Consumption (sociology), Sleep (system call), Medicine, Quality (philosophy), Psychology, Environmental health, Psychiatry, Computer science, Cognition, Sociology
- MeSH
- humans, dyssomnias, sleep initiation and maintenance disorders, caffeine, severity of illness index, cross-sectional studies, feeding behavior, age factors, time factors, quality of life, carbonated beverages, coffee, tea, adult, aged, aged, 80 and over, middle aged, south australia, female, male, young adult, self report
4 authors
From AU
- Emily J. Watson · correspondingUniversity of South Australia
- Alison Mary CoatesUniversity of South Australia
- Mark J KohlerUniversity of South Australia
- Siobhan BanksUniversity of South Australia
Abstract
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.
Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).
Community trust
Loading…
How much do you trust this study's findings?
Comments
Sign in to rate, comment on or flag this study.Sign inSomething wrong here?
Flag this study if its information, labels or funding look wrong. An editor reviews every flag.
Sign in to rate, comment on or flag this study.Sign inEducational information about published research. Not medical advice, and not a recommendation to start or stop anything.