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. 2021 Nov 22;45(1):zsab278. doi: 10.1093/sleep/zsab278

Table 3.

Model parameters and fit using sequential linear regression with multiple imputation

Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7
Fixed effects Estimate Std. error Estimate Std. error Estimate Std. error Estimate Std. error Estimate Std. error Estimate Std. error Estimate Std. error
Intercept 2.569** 0.668 3.069** 0.745 3.052** 0.739 3.034** 0.765 3.418* 1.136 3.049* 1.234 3.921* 1.597
PVT Lapses −1.059** 0.233 −0.990** 0.246 −0.962** 0.248 −0.814* 0.264 −0.741* 0.269 −0705* 0.270 −0.695* 0.271
PVT False Start −0.213 0.254 −0.201 0.255 −0.188 0.253 −0.214 0.255 −0.213 0.258 −0.159 0.260 −0.122 0.262
PVT Fastest 10% RT −0.002 0.003 −0.002 0.003 −0.002 0.003 −0.001 0.003 −0.0003 0.003 −0.0001 0.003 −0.0001 0.003
DSST # Correct −0.010 0.006 −0.009 0.006 −0.010 0.006 −0.011 0.007 −0.010 0.007 −0.009 0.007
Digit Span −0.004 0.034 −0.012 0.034 −0.022 0.035 −0.014 0.036 −0.009 0.036 −0.018 0.039
MWT −0.283* 0.135 −0.279* 0.133 −0.278* 0.132 −0.268* 0.133 −0.266* 0.133
KSS 0.027 0.050 0.030 0.052 0.020 0.052 0.021 0.052
POMS 0.078 0.218 0.064 0.220 −0.013 0.222 −0.006 0.222
VAS-Fatigue −0.210 0.147 −0.181 0.152 −0.158 0.154 −0.203 0.160
Sex −0.011 0.126 −0.002 0.126 −0.004 0.126
Age −0.011 0.008 −0.008 0.008 −0.008 0.008
Education −0.036 0.032 −0.047 0.032 −0.045 0.032
Ethnicity −0.131 0.128 −0.056 0.131 −0.090 0.135
MEQ −0.0001 0.011 0.001 0.011 0.001 0.011
BMI 0.019 0.017 0.019 0.017 0.018 0.017
EPI Extraversion 0.032 0.015* 0.032* 0.015
EPI Lie/Desirability −0.024 0.015 −0.029 0.016
EPI Neuroticism 0.004 0.025 0.001 0.026
EPI Psychoticism −0.024 0.033 −0.027 0.034
Hayling Scaled Score −0.046 0.042
NAART −0.005 0.009
Model fit
R 2 0.098 0.106 0.127 0.136 0.154 0.176 0.181
F 9.880 6.393 5.966 4.371 3.105 2.759 2.581
ΔR2 0.098 0.008 0.021 0.009 0.018 0.022 0.005
ΔF 9.880 1.210 4.415 0.859 0.873 1.666 0.857
Sig. ΔF (p value) <0.001 0.300 0.036 0.462 0.514 0.155 0.424

*p < 0.05.

**p < 0.001.