Fletcher, Adam
Stewart, Simon
Heathcote, Karen
Page, Peter
Dorrian, Jillian
Article History
Received: 17 August 2021
Accepted: 15 March 2022
First Online: 18 May 2022
Competing interests
: The data that were analysed and presented in this manuscript were part of a database that was collected by A.F. and K.H. from Integrated Safety Support, Melbourne, for a large international aviation company providing emergency medical, search and rescue, oil and gas, firefighting, and other services. S.S. was an employee of that company. The data were originally collected as part of ongoing company fatigue risk management systems monitoring and improvement processes. J.D. was involved in the original analyses of the dataset for individual study reports, written by A.F. and K.H.