Fig. 5From: Revisiting level II sleep studies in the era of COVID-19: a theoretical economic decision model in patients with suspected obstructive sleep apneaCosts/person by Algorithm and Pretest Probability. Graph showing changes in cost as a function of pretest probability of OSA (from 0- OSA not present; to 1 OSA certain to be present). LIII as initial test more cost efficient at higher pretest OSA probabilitiesBack to article page