Fearfully High

A 14-year Kaiser Permanente study of 274,000 Northern California members tracked the incidence of dementia in patients who had displayed no symptoms at the age of 64.

The data were used to develop "cumulative risk" estimates for the six ethnic groups in the study; blacks had the highest risk (38%) while Pacific Islanders had the lowest (25%).

Your humble blogger's Asian ancestry projects a risk at the low end of the scale (28%), in the same ballpark as the risk of cancer (35%). Both are fearfully high.