Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-0449
“No effect of CO2 during sleep was found on next day cognition.”
Structure
- Factor
- Carbon dioxide (CO₂)
- Outcome
- Cognitive performance
- Population
- schoolchildren aged 10-12 years
- Setting
- climate chamber (sleeping), DK
- Study design
- double-blind, placebo-controlled, fully balanced crossover trial: 36 children aged 10-12 years slept in a climate chamber in 6 groups under three conditions seven days apart in random order (high ventilation with CO2 at 700 ppm; high ventilation with added pure CO2 at 2000-3000 ppm; reduced ventilation with CO2 at 2-3000 ppm and bioeffluents), CANTAB cognitive test battery in the evening and next morning, sleep monitored with wrist actigraphs (class 3)
- Sample
- 36 children
- Caveat
- primary outcome null result of a crossover trial; the Results sentence 'There were no significant exposure effects on cognitive performance' is split across a line break in the text layer
A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.