Table 2. Association of birth weight with risk of all-cause dementia and its subtypes.

Factors	Normal birth weight	Low birth weight HR (95% CI)	Macrosomia HR (95% CI)
HR: hazard ratio.
All-cause dementia
Cases/person years	2884/14902848	564/2030471	637/2629258
Model 1	1	1.21 (1.10, 1.32)	1.06 (0.94, 1.16)
Model 2	1	1.25 (1.15, 1.37)	1.04 (0.95, 1.13)
Model 3	1	1.18 (1.08, 1.30)	1.01 (0.92, 1.10)
Alzheimer's disease
Cases/person years	1277/1490284	248/2030471	303/2629258
Model 1	1	1.18 (1.04, 1.36)	1.13 (1.00, 1.28)
Model 2	1	1.20 (1.05, 1.38)	1.13 (0.99, 1.28)
Model 3	1	1.14 (1.00, 1.31)	1.10 (0.97, 1.25)
Vascular dementia
Cases/person years	635/1490284	129/2030471	125/2629258
Model 1	1	1.25 (1.04, 1.51)	0.94 (0.78, 1.14)
Model 2	1	1.32 (1.09, 1.60)	0.88 (0.73, 1.07)
Model 3	1	1.22 (1.01, 1.48)	0.84 (0.69, 1.01)