Table A8.

Coefficients and effect sizes of the sociodemographic, premorbid, and injury-related factors associated with the intensity of GAD-7 scores in the respective negative binomial (NB) model.

Factor|Reference	b	SE	z	p	RR	95% CI
age	0.00	0.00	−1.28	0.20	1.00	0.99–1.00
female|male	0.52	0.25	2.06	0.04	1.69	1.02–2.82
none/primary school|college/university	0.47	0.11	4.26	<0.001	1.60	1.28–1.99
secondary/high school|college/university	0.09	0.08	1.17	0.24	1.10	0.94–1.29
part-time|full-time employed	−0.08	0.12	−0.72	0.47	0.92	0.74–1.16
in training|full-time employed	−0.28	0.15	−1.93	0.05	0.75	0.57–1.01
unemployed|full-time employed	0.21	0.14	1.51	0.13	1.23	0.94–1.62
retired|full-time employed	−0.07	0.13	−0.58	0.56	0.93	0.72–1.20
living alone|with someone	0.00	0.09	0.05	0.96	1.00	0.84–1.20
premorbid psychiatric history	0.50	0.11	4.52	<0.001	1.66	1.33–2.07
road traffic accident|incidental fall	0.26	0.08	3.22	<0.001	1.30	1.10–1.52
other injury cause|incidental fall	0.10	0.12	0.86	0.39	1.10	0.88–1.39
complicated mild|uncomplicated mild TBI	0.07	0.09	0.80	0.43	1.08	0.90–1.29
moderate/severe|uncomplicated mild TBI	−0.11	0.13	−0.82	0.41	0.90	0.69–1.17
LOC	0.02	0.10	0.21	0.83	1.02	0.84–1.24
extracranial injuries (ISS)	−0.01	0.00	−1.64	0.10	0.99	0.99–1.00
admission to ward|emergency room	−0.05	0.11	−0.45	0.66	0.95	0.78–1.17
intensive care unit|emergency room	0.08	0.15	0.55	0.58	1.09	0.81–1.45
moderate disability|good recovery	0.65	0.09	7.14	<0.001	1.92	1.61–2.29
severe disability|good recovery	0.80	0.13	5.96	<0.001	2.23	1.72–2.91
age:female|age:male	0.00	0.00	−1.20	0.23	1.00	0.99–1.00
LOC:female|LOC:male	−0.07	0.16	−0.41	0.68	0.94	0.68–1.29

Note. b = model estimate, SE = standard error, z = z-value, p = p-value, RR = rate ratio, 95% CI = 95% confidence interval (lower bound–upper bound), TBI = traumatic brain injury, LOC = loss of consciousness, ISS = total injury severity score; bold p-values are significant at α = 0.05.