PapersPMID:41124973
Age- and dose-specific effects of caffeine on sleep: A meta-analysis of controlled crossover trials.
- 01 · findings
- 2
- 02 · compound
- 1
- 03 · endpoints
- 2
- 04 · null
- 0
caffeine- Population, every finding
- Healthy adults; acute caffeine versus placebo, nighttime polysomnography. Overall pooled estimate across 22 controlled crossover trials, not an age or dose subgroup. Instrument: polysomnography.
What moved
2 findingsHow to read these marks →caffeine — increases sleep onset latency
very limitedFindingreplicated ×1
“Random-effects meta-analysis showed that caffeine significantly reduced total sleep time (mean difference [MD] = -34.67 min), sleep efficiency (MD = -4.74 %), and slow-wave sleep proportions (SWS%) (MD = -1.01 %), while prolonging sleep onset latency (MD = +8.35 min).”
Quoted verbatim from Age- and dose-specific effects of caffeine on sleep: A meta-analysis of controlled crossover trials. - Study
- meta-analysis
caffeine — decreases total sleep time
very limitedFindingreplicated ×2
“Random-effects meta-analysis showed that caffeine significantly reduced total sleep time (mean difference [MD] = -34.67 min), sleep efficiency (MD = -4.74 %), and slow-wave sleep proportions (SWS%) (MD = -1.01 %), while prolonging sleep onset latency (MD = +8.35 min).”
Quoted verbatim from Age- and dose-specific effects of caffeine on sleep: A meta-analysis of controlled crossover trials. - Study
- meta-analysis
Study record
- Read under
- caffeine
- Design
- meta-analysis
- Species
- human
- Population
- Healthy adults in controlled crossover trials measuring nighttime polysomnography after acute caffeine or placebo
- Participants
- 956
- Comparator
- placebo
- Duration
- not recorded
- Endpoints measured
- 7
- Record
- declined
- Declined
- another reason, stated per paper
- Readings recorded
- 1