New study protocol for a pragmatic, cluster-randomised, parallel, two-arm, group sequential superiority trial of HEPA filters in school classrooms to commence later this year in Norway
pmc.ncbi.nlm.nih.gov/articles/PMC...
-Using school absence as outcome
-be interesting to see the results
Classroom air purifiers for reducing school absence: study protocol for a pragmatic, cluster-randomised, parallel, two-arm, group sequential superiority trial
Respiratory infections like influenza and SARS-CoV-2 pose significant global health risks due to their high transmissibility and severity. SARS-CoV-2 has caused over 7 million deaths worldwide, and the Lancet Commission estimates a >20% chance of a ...
