Research Article

Effect of Dementia on the Use of Drugs for Secondary Prevention of Ischemic Heart Disease

Table 3

Association between dementia and use of one or more classes of guideline-recommended medications for secondary prevention of ischemic heart disease by study participants, 1989 to 1998.

VariableOdds ratio (95% confidence interval)
Use of an ACE 
inhibitor
Use of a beta-blockerUse of a lipid-lowering medication*Use of an antiplatelet medicationUse of two or more classes of guideline-recommended medications

Dementia1.19 (0.79–1.77)0.97 (0.65–1.44)0.76 (0.37–1.55)0.74 (0.45–1.23)0.60 (0.35–0.99)
Age0.99 (0.94–1.03)0.98 (0.94–1.02)0.99 (0.93–1.05)0.97 (0.94–0.99)0.97 (0.92–0.99)
Age and dementia interaction1.01 (0.92–1.10)1.03 (0.98–1.07)0.99 (0.92–1.07)1.06 (0.99–1.14)1.10 (1.03–1.19)
White race1.93 (0.95–3.91)0.91 (0.43–1.92)2.28 (0.99–5.20)2.66 (1.65–4.30)2.26 (1.34–3.86)
Male sex1.12 (0.69–1.82)1.32 (0.78–2.23)1.21 (0.58–2.54)1.40 (1.00–1.94)1.24 (0.80–1.90)
Atrial fibrillation1.16 (0.71–1.90)0.95 (0.53–1.70)0.29 (0.15–0.56)0.98 (0.70–1.38)1.03 (0.66–1.61)
CHF2.87 (1.33–6.55)0.40 (0.11–1.28)1.42 (0.37–5.50)0.95 (0.49–1.84)1.12 (0.50–2.53)
Hypertension1.12 (1.00–1.23)1.15 (1.08–1.24)1.47 (1.00–2.15)1.07 (0.96–1.19)1.16 (1.05–1.30)
Diabetes1.21 (1.00–1.46)0.86 (0.78–0.96)1.14 (0.96–1.37)1.06 (0.91–1.23)1.08 (0.94–1.23)

ACE: angiotensin-converting enzyme; CHF: congestive heart failure.
*Lipid-lowering medications included statins (3-hydroxy-3-methyglutaryl-coenzyme A [HMG-CoA] reductase inhibitors) and nonstatins. The model for these medications was restricted to data from 1992 to 1998.
Antiplatelet medications included cyclooxygenase inhibitors (e.g., aspirin) and adenosine diphosphate (ADP) receptor inhibitors.
.