Table 4.

Multivariable logistic regression analysis of predictors for new diagnosis of dementia by age group.

	75–79 y	80–84 y	≥85 y
Predictors	OR (95% CI)	OR (95% CI)	OR (95% CI)
Age (per 1-year increase)	1.14 (1.12–1.16)	1.08 (1.06–1.10)	0.99 (0.99–1.00)
Female	1.19 (1.14–1.25)	1.23 (1.17–1.29)	1.12 (1.06–1.19)
Cerebrovascular disease	1.25 (1.18–1.32)	1.13 (1.08–1.19)	1.06 (1.00–1.13)
Diabetes mellitus	1.12 (1.06–1.17)	0.98 (0.93–1.03)	0.97 (0.91–1.03)
Ischemic heart disease	0.99 (0.92–1.05)	1.01 (0.95–1.07)	0.96 (0.90–1.03)
Atrial fibrillation	1.06 (0.97–1.16)	0.95 (0.87–1.02)	0.87 (0.79–0.96)
Depression or use of antidepressants at baseline	1.47 (1.36–1.59)	1.38 (1.28–1.49)	1.21 (1.10–1.32)
Use of antipsychotics at baseline	1.48 (1.33–1.64)	1.40 (1.25–1.56)	1.31 (1.15–1.49)
Use of anxiolytics at baseline	1.03 (0.97–1.10)	0.95 (0.89–1.01)	0.97 (0.91–1.05)
Use of hypnotics at baseline	1.17 (1.07–1.28)	1.19 (1.10–1.30)	1.16 (1.04–1.29)
Use of antihypertensive drugs at baseline	0.89 (0.85–0.94)	0.89 (0.85–0.93)	0.90 (0.85–0.95)
Use of dyslipidemia drugs at baseline	0.87 (0.83–0.92)	0.92 (0.88–0.97)	0.96 (0.91–1.02)
Use of antithrombotics at baseline	1.09 (1.02–1.15)	1.05 (0.99–1.11)	1.01 (0.94–1.07)

Abbreviations: OR, odds ratio; CI, confidence interval.