Western Europe has the most number of people with dementia (7.0 million), closely followed by East Asia with 5.5 million, South Asia with 4.5 million and North America with 4.4 million. The top nine countries with the highest number of prevalent cases of dementia in 2010 were China with 5.4 million, USA with 3.9 million, India with 3.7 million, Japan with 2.5 million, Germany with 1.5 million, Russia with 1.2 million, France and Italy with 1.1 million each, and finally Brazil with 1.0 million (Table