The effect of air quality on sleep and cognitive performance in school children aged 10-12 years: a double-blinded, placebo-controlled, crossover trial.

"Funding: this study was supported by Realdania Foundation (grant No. PRJ-2017-00025 entitled “God-Nat. Et studie af søvnmiljøets betydning for børns indlæringsevne og sociale udvikling,” project manager: Torben Sigsgaard, M.D., Ph.D.)."

"Thirty-six children were enrolled in the study and allocated to 6 groups of 6 children. The parents of the children signed an informed consent, and the children received DKK 500 (approx. USD 80) per night as compensation. One child was excluded because of difficulty completing the cognitive test. The study was approved by the Regional Committee on Health Research Ethics for Central Denmark Region (Registration No. 1-10-72-203-17). The study was approved by the Regional Committee on Health Research Ethics for Central Denmark Region (Registration No. 1-10-72-203-17). The study was reported to the Danish Data Protection Agency (journal No. 2016-051-000001/641). The study was conducted in accordance with The Declaration of Helsinki and written consent was obtained from all participants prior to participation."