Potomac Sources
Scientists are on the verge of painting a new and dramatically detailed portrait of Americans who have Alzheimer's disease and related dementias. The first brush strokes on the canvas came with the November publication of new data on the prevalence of dementia collected by teams of nurses and neuropsychology technicians from Duke University. They traveled to homes, apartments, assisted living facilities and nursing homes, collecting blood and DNA samples and videotaping interviews.
The study, published in the journal Neuroepidemiology (29: 1-2, 2007), is the first to include people from all regions of the United States, a sample of 856 individuals in 42 …