Finding · as stated by the study, recorded by Coridum · status verified-machine

Finding F-0476

“The median (interquartile range, IQR) time/day with CO2 concentration > 800 ppm (primary outcome) was 110 min (IQR 47–207) at baseline, 82 min (IQR 12–226.5) during sham periods, 78 min (IQR 20–154) during intervention periods and 140 min (IQR 19.5–612.5) post-intervention.”

Laurent Monitors to improve indoor air carbon dioxide concentrations in the hospital: A randomized crossover trial (2022). The Science of the total environment. Page 2. CKB 8326

Structure

Factor
Carbon dioxide (CO₂)
Intervention
Ventilation
Population
geriatric inpatients and staff
Setting
hospital patient room, BE
Study design
randomized, sham-controlled, crossover, open-label trial (February to May 2021): CO2 monitors placed in twelve double-bed patient rooms across two geriatric wards of a Belgian hospital, staff instructed to open windows, increase air exchange and reduce crowding to keep CO2 at or below 800 ppm; primary outcome time per day above 800 ppm (class 3)
Effect
median 78
Averaging time
minutes per day above 800 ppm
Sample
12 rooms
Caveat
time above a threshold recorded as a level; the CO2-monitor feedback intervention is filed under ventilation; the intervention period differed significantly only from the post-intervention period (P = 0.02), mainly due to an imbalance in rooming-in

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.