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 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.](/cms/asset/523c1f54-e3f5-4d50-86ff-6fa7e8ae5c8f/ipec_a_1376134_f0001_b.gif)