doi:10.1001/jamanetworkopen.2021.0012 Correction: This article was corrected on March 25, 2021, to fix transposed data for the intervention and control groups in the visual abstract. Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2021 Gohir...
Firefighters have increased risk of cardiovascular disease and of sudden death from coronary heart disease on duty while suppressing fires. This study investigated the effect of firefighting activities, using appropriate personal protective equipment (PPE), on biomarkers of cardiovascular effects in young ...
(Numerical values of the latter are called estimates.) Some requirements on ‘good’ estimators are mentioned, such as being unbiased, consistent and having small variance. Four general methods for obtaining estimators are presented: Ordinary Least Squares (OLS), Moment, Best Linear Unbiased ...