MVV Over all subjects, correlations revealed significant associations between MVV and the reported likelihood of having fallen asleep (r =.37, p < .001), MVV, and ESS (r = −.14, p =.05), and marginally significant associations between MVV and KSS pre (r = −.13, p =.07).
Further results show that objective measured sleepiness was significantly associated with the reported likelihood of having fallen asleep during EEG recordings and was almost significantly associated with subjective daytime sleepiness.
Inference Statistics Correlations Between Objective and Subjective Sleepiness Parameters Canonical correlation analysis results indicate the existence of highly significant global association between subjective (SSS pre ,KSS pre ,VAS pre , SSS post ,KSS post ,VAS post , ΔSSS, ΔKSS, ΔVAS, ASLEEP) and objective (Proportions of VIGALL Stages 0, A, B, C, MVV, ASS) measures of sleepiness (Pillai-Bartlett-Trace test, p = 0.001).