Table 8.

Number of CMV drivers screened as High-Risk on Somni-Sage, Excessive Daytime Sleepiness, Witnessed Apneass, estimated positive predictive values of Somni-Sage in the different years, estimated prevalence based on the assumption that High-risk drivers not tested with PSG would test positive in the same proportion as tested High-risk drivers.

Year	High-risk drivers (Class 1) on Somni-Sage n (%)	Self-reported EDS of high-risk drivers on Somni-Sage n (%)	Self-reported witnessed apneas of high-risk drivers on Somn- Sage n (%)	Estimated Positive Predictive Value of Somni-Sage Class 1	Estimated Prevalence of OSA (AHI>10)
2006	2050 (29)	591 (29)	300 (14.6)	70 %	20.3 %
2007	847 (25)	124 (14.6)	272 (32.1)	63 %	15.75 %
2008	886 (30)	98 (11.1)	199 (22.5)	67 %	20.1 %
2009	1589 (39)	150 (9.4)	314 (19.8)	66 %	25.7 %
2010	536 (28)	34 (6.3)	92 (17.2)	76 %	21.3 %
Mean total	5908 (30.5)	997 (16.9)	1177 (19.9)	68 %	21 %

CMV= commercial motor vehicle; EDS= excessive daytime sleepiness; OSA= obstructive sleep apnea; PSG= Polysomnogram; WA= witnessed apneas

^*Class 1= high priority for further testing (PSG); Non-class 1= lower priority for further testing (PSG)