Table 1.

Cognitive associations between head injury (self-report; broad-band; narrow-band ICD10 codes) compared with no history

Variable	Coefficient (β)	P	Lower 95% CI	Upper 95% CI	N	r 2
Self-report head injury
Log reaction time	0.006	0.939	−0.140	0.152	44 041	0.114
Log pairs-matching errors	−0.012	0.880	0.164	0.140	44 760	0.022
Log tower rearranging errors	−0.073	0.425	−0.252	0.106	31 855	0.050
Digit symbol score	−0.268	0.001	−0.432	−0.104	32 160	0.205
Matrix completion score	−0.156	0.084	−0.333	0.021	32 143	0.070
Fluid intelligence score	−0.086	0.276	−0.241	0.069	43 904	0.019
Broad-band TBI
Log reaction time	0.016	0.596	−0.044	0.077	44 041	0.114
Log pairs-matching errors	−0.022	0.490	−0.085	0.041	44 760	0.022
Log tower rearranging errors	−0.009	0.802	−0.080	0.062	31 855	0.050
Digit symbol score	−0.101	0.002	−0.166	−0.037	32 160	0.205
Matrix completion score	−0.047	0.191	−0.117	0.023	32 143	0.070
Fluid intelligence score	−0.023	0.485	−0.087	0.041	43 904	0.019
Narrow-band TBI
Log reaction time	0.049	0.431	−0.073	0.171	44 041	0.114
Log pairs-matching errors	−0.021	0.744	−0.147	0.105	44 760	0.022
Log tower rearranging errors	−0.141	0.057	−0.287	0.004	31 855	0.050
Digit symbol score	−0.223	0.001	−0.356	−0.09	32 160	0.205
Matrix completion score	−0.18	0.014	−0.324	−0.036	32 143	0.071
Fluid intelligence score	−0.069	0.29	−0.197	0.059	43 904	0.019

95% CI, confidence intervals; SE, standard error.

Betas are on the per-SD scale. Associations corrected for: age, sex, Townsend index (deprivation) and self-reported medication history (cardiometabolic; exogenous hormones). Significant associations at P < 0.05 highlighted in bold.