Table 4.

Multivariable regression of cognitive outcomes, without age group^*sex interaction

	WAIS-PSI		CVLT Trials 1–5		TMT B-A
Variable	B [95% CI]	Sig. (p)	B [95% CI]	Sig. (p)	B [95% CI]	Sig. (p)
Age Group*Sex		0.058		0.839		0.896
Interaction factor	(ns, not included)		(ns, not included)		(ns, not included)
Age Group		0.023*		0.151		0.990
18–29 years	reference	---	reference	---	reference	---
30–39 years	11.88 [1.66, 22.09]		−3.88 [−9.21, 1.44]		−0.05 [−8.99, 8.88]
Sex		0.448		0.194		0.397
Male	reference	---	reference	---	reference	---
Female	4.19 [−6.73, 15.11]		−3.74 [−9.43, 1.95]		4.11 [−5.47, 13.69]
Race		0.043		0.067		0.336
African-American/African	reference	---	reference	---	reference	---
Caucasian	4.60 [−12.18, 21.39]	0.587	9.38 [0.63, 18.12]	0.036	9.68 [−4.99, 24.36]	0.193
Other races	18.85 [0.01, 37.68]	0.050	5.06 [−4.75, 14.88]	0.308	12.08 [−4.37, 28.52]	0.148
Education Years		0.011*		0.011*		0.013*
Per-Year	2.62 [0.62, 4.63]		1.37 [0.32, 2.42]		−2.23 [−3.98, −0.48]
PMH Psychiatric		0.761		0.064		0.817
No	reference	---	reference	---	reference	---
Yes	1.62 [−8.93, 12.18]		5.19 [−0.31, 10.69]		1.09 [−8.24, 10.42]
Mechanism of Assault		0.001*		0.071		0.531
No	reference	---	reference	---	reference	---
Yes	−22.73 [−35.71, −9.75]		−6.22 [−12.98, 0.54]		3.59 [−7.77, 14.95]
LOC Duration		0.378		0.928		0.827
Unknown	reference	---	reference	---	reference	---
None	8.59 [−5.72, 22.92]	0.236	0.04 [−7.42, 7.50]	0.992	−3.86 [−16.33, 8.60]	0.540
<30 min	0.80 [−11.21, 12.80]	0.895	0.99 [−5.27, 7.25]	0.754	−1.83 [−12.30, 8.64]	0.728
ED GCS		0.251		0.855		0.220
<15	reference	---	reference	---	reference	---
=15	7.39 [−5.31, 20.10]		−0.61 [−7.23, 6.01]		−6.89 [−17.98, 4.20]
CT Intracranial Lesion		0.144		0.396		0.259
No	reference	---	reference	---	reference	---
Yes	8.58 [−2.98, 20.14]		−2.59 [−8.61, 3.44]		5.93 [−4.44, 16.29]
Polytrauma		0.030		0.522		0.679
No	reference	---	reference	---	reference	---
Yes	−16.16 [−30.70, −1.61]		−2.45 [−10.03, 5.13]		−2.66 [−15.38, 10.06]

^*delineates statistical significance at Benjamini-Hochberg correction threshold of p<0.025 for main comparisons (age group*sex, age group, sex) and p<0.023 for regression control comparisons (race, education, PMH psychiatric, mechanism, LOC, GCS, CT, polytrauma). B = mean difference; CI = confidence interval; CT = computed tomography; CVLT = California Verbal Learning Test; ED = emergency department; GCS = Glasgow Coma Scale; LOC = loss of consciousness; PMH = prior medical history; TMT B-A = Trailmaking Test Trial B minus Trial A; WAIS-PSI = Wechsler Adult Intelligence Scale-Processing Speed Index