Fig. (2).

Incidence of dementia per 100 person-years at 7 years end of follow-up by age and smoking, drinking status in men. These men were divided into three groups according to age. A. each age-group, the incidence of Alzheimer’s disease per 100 person-years was significantly higher in co-smoking, drinking status than in current smoking and daily drinking (p < 0.01). B. In each age-group, the incidence of vascular dementia per 100 person-years was significantly higher in co-smoking, drinking status than in current smoking and daily drinking (p < 0.01).