Table 6.

Univariate and Multi-Variate Models of Attention/Executive Functioning Performance

		Univariate model		Multi-variate model
Outcome variable	Predictor	Estimate (95 % CI)	p value	Estimate (95 % CI)	p value
TMT B	Age	0.526 (0.315 to 0.737)	<0.001	0.482 (0.248 to 0.715)	<0.001
	Gender	−0.158 (−6.946 to 6.647)	0.964	−2.538 (−9.603 to 4.527)	0.480
	Race	−8.100 (−12.480 to −3.721)	<0.001	−8.126 (−9.603 to 4.527)	<0.001
	Education	−0.137 (−6.119 to 5.845)	0.964	−3.783 (−9.672 to 2.106)	0.207
	TBI	5.372 (−0.549 to 11.293)	0.075	6.037 (0.299 to 11.774)	0.039
	STOP-BANG Score	2.721 (1.429 to 4.013)	<0.001	1.664 (0.206 to 3.121)	0.025
WAIS-IV Digit Span Backwards	Age	−0.042 (−0.062 to −0.022)	<0.001	−0.043 (−0.065 to −0.020)	<0.001
	Gender	−0.193 (−0.834 to 0.449)	0.555	0.098 (−0.577 to 0.773)	0.775
	Race	0.446 (0.034 to 0.858)	0.034	0.458 (0.055 to 0.861)	0.026
	Education	0.141 (−0.423 to 0.705)	0.623	0.434 (−0.129 to 0.997)	0.130
	TBI	−0.389 (−0.948 to 0.171)	0.173	−0.465 (−1.014 to 0.083)	0.096
	STOP-BANG Score	−0.201 (−0.324 to −0.078)	0.001	−0.085 (−0.224 to 0.055)	0.233
Flanker	Age	−0.041 (−0.050 to −0.031)	<0.001	−0.036 (−0.046 to −0.025)	<0.001
	Gender	0.097 (−0.216 to 0.411)	0.542	0.126 (−0.187 to 0.440)	0.428
	Race	0.092 (−0.116 to 0.300)	0.385	0.095 (−0.095 to 0.285)	0.328
	Education	−0.477 (−0.749 to −0.205)	0.001	−0.234 (−0.495 to 0.028)	0.080
	TBI	−0.067 (−0.342 to 0.207)	0.630	−0.110 (−0.364 to 0.144)	0.394
	STOP-BANG Score	−0.126 (−0.186 to −0.066)	<0.001	−0.059 (−0.124 to 0.006)	0.075

Estimates are presented as beta values.

CI, confidence interval; TMT B, Trail Making Test B; TBI, traumatic brain injury; WAIS-IV, Weschler Adult Intelligence Scale 4th Edition.