Table 3:

Association^* between history of TBI and risk of dementia according to the four algorithms, HRS, 2000–2014

	LKW (n=2414)		HW (n=2477)		Wu (n=2470)		Crimmins (n=2367)
	HR (95% CI)	P value	HR (95% CI)	P value	HR (95% CI)	P value	HR (95% CI)	P value
Model 1
TBI history vs. not	0.92 (0.66 ; 1.29)	0.64	1.02 (0.67 ; 1.54)	0.94	1.12 (0.79 ; 1.60)	0.52	0.92 (0.65 ; 1.30)	0.64
Model 2
TBI history vs. not	0.90 (0.65 ; 1.26)	0.54	1.02 (0.67 ; 1.55)	0.94	1.16 (0.81 – 1.65)	0.42	0.89 (0.63 ; 1.25)	0.49

TBI: Traumatic Brain Injury; LKW: Langa-Kabeto-Weir ; HW: Herzog & Wallace.

Model 1 adjusted for gender, race and education. Model 2 was additionally adjusted for veteran status, marital status, depressive symptoms, ever have hypertension, diabetes, cancer, heart disease, stroke, lung disease, arthritis, and ever smoking.

^*Using Cox Proportional Hazards models