Table 2.

Cox proportional hazards regression model results. Bolded results are significant at p < 0.05.

Comparison	Main Effects Model Adjusted HR (95% CI)	Interaction Model Adjusted HR (95% CI)
Memory Change vs. No Complaint	1.87 (1.47–2.38)
Memory Problem vs. No Complaint	6.01 (3.68–9.74)
Memory Change vs. No Complaint (Black = Y)		2.46 (1.15–5.27)
Memory Problem vs. No Complaint (Black = Y)		35.7 (12.99–100.0)
Memory Change vs. No Complaint (Black = N)		1.81 (1.41–2.33)
Memory Problem vs. No Complaint (Black = N)		4.50 (2.55–7.94)
Baseline age, 1 year	1.11 (1.09–1.13)	1.11 (1.09–1.13)
Black vs. not black race	1.86 (1.28–2.70)
Education, 1 year	0.97 (0.93–1.01)	0.97 (0.93–1.01)
APOE-ε4 carrier vs. not	1.91 (1.52–2.41)	1.88 (1.49–2.38)
Diabetes vs. none	1.07 (0.75–1.51)	1.08 (0.76–1.53)
Hypertension vs. none	0.91 (0.72–1.16)	0.91 (0.72–1.15)
Sleep apnea vs. none	1.34 (0.91–1.99)	1.34 (0.90–1.99)
Head injury vs. none	1.39 (1.03–1.88)	1.36 (1.01–1.85)