Table 3.

Association between baseline household and transportation activities and risk of dementia stratified according to age

	Multi-adjusted modela All-cause dementia		Multi-adjusted modela Alzheimer’s dementia
	HR (95%CI)	p-value	HR (95%CI)	p-value
< 80 years	n/N = 38/776		n/N = 23/761
≤ 1.6	1 (Ref)	–	1 (Ref)	–
]1.6–2.0]	0.60 [0.26–1.37]	0.23	0.81 [0.27–2.46]	0.71
> 2.0	0.52 [0.22–1.23]	0.14	0.68 [0.21–2.17]	0.52
≥80 years	n/N = 79/773		n/N = 56/750
≤ 1.6	1 (Ref)	–	1 (Ref)	–
]1.6–2.0]	0.52 [0.30–0.91]	0.02	0.38 [0.19–0.76]	0.006
> 2.0	0.69 [0.38–1.26]	0.23	0.71 [0.36–1.40]	0.32

Notes: n/N = number of cases/total

HR Hazard Ratio, CI Confidence Interval

^a Cox proportional hazard model adjusted for age, center, sex, APOE, education level, living alone, diabetes, depressive symptomatology, cardiovascular disease