Figures & data
Figure 1. PRISMA Flow Diagram for PICO#1 PROSPERO 2016:CRD42016040097. Notes: ** Beurskens AJ, Bultmann U, Kant I, Vercoulen JH, Bleijenberg G, Swaen GM. Fatigue among working people: validity of a questionnaire measure. Occup Environ Med. 2000;57(5):353–7. Hossain JL, Reinish LW, Heslegrave RJ, et al. Subjective and objective evaluation of sleep and performance in daytime versus nighttime sleep in extended-hours shift-workers at an underground mine. J Occup Environ Med. 2004;46(3):212–26.
Figure 2. Risk of bias, reliability, and validity performance of fatigue survey instruments.
Figure 3. Risk of bias, reliability, and validity performance of sleepiness survey instruments.
Supplemental material