Neurocognitive correlates of probable posttraumatic stress disorder following traumatic brain injury

. 2021 Dec 22;2:100854. doi: 10.1016/j.bas.2021.100854

Table 2Linear regression models: cognitive tests associated with the four PTSD symptom clusters – sensitivity analysis of imputed data

Covariates	Intrusion cluster		Avoidance cluster		Cognition/Mood cluster		Arousal cluster
Covariates	B(SE)	p-value^b	B(SE)	p-value^b	B(SE)	p-value^b	B(SE)	p-value^b	VIF (range)^c
Age	-.026 (.005)	< .001	-.014 (.002)	< .001	-.050 (.007)	< .001	-.033 (.005)	< .001	1.17–1.22
Sex (Male)	.17 (.15)	.26	.068 (.083)	.42	.12 (.24)	.62	.42 (.21)	.043	1.03–1.04
Educational level^a									1.12–1.13
Primary school or less	.55 (.29)	.063	.15 (.13)	.27	.17 (.38)	.66	.47 (.34)	.17
Secondary school/high school	.47 (.18)	.008	.16 (.090)	.071	.13 (.30)	.68	.15 (.23)	.53
Post-high school training	.39 (.20)	.053	.17 (.10)	.11	.38 (.33)	.25	.76 (.28)	.009
Psychiatric history^d	1.36 (.32)	.001	.52 (.17)	.013	2.16 (.51)	.002	1.80 (.30)	< .001	1.01–1.02
GCS	.038 (.025)	.13	.022 (.011)	.052	-.091 (.039)	.032	.015 (.031)	.64	1.08–1.10
TMT-(B-A)	.33 (.088)	< .001	.13 (.054)	.028	.23 (.16)	.15	.32 (.14)	.045	1.30–1.35
CANTAB RTI	.34 (.10)	.005	.13 (.053)	.035	.61 (.11)	< .001	.50 (.10)	< .001	1.16–1.21
Nagelkerke R²	.064		.051		.070		.061

Note:^a Reference category: College/University, ^b Significance level p < .01, ^c VIF = variance inflation factor (range) of the original and 5 imputed datasets, ^d Information about the psychiatric history and type of psychiatric disorder(s) was obtained by interview from the patient and/or carer upon admission.