Table 3.

Classification Statistics for the Logistic Regression Model for Prediction of Sleep Apnea With (Step 2) and Without (Step 1) Inclusion of Insomnia Symptoms

Logistic Regression% CorrectSensitivitySpecificityPositive Predictive ValueNegative Predictive Value
Step 1*80.40.290.950.600.83
Step 2†85.60.480.960.770.87

  • ↵* BMI and ESS.

  • ↵† BMI, ESS, and ISI.

  • BMI, body mass index; ESS, Epworth Sleepiness Scale; ISI, Insomnia Severity Index.