Background-Clock-drawing tests are popular components of dementia screens but no single scoring system has been universally accepted. We sought to identify an optimal subset of clock errors for dementia screening and compare them with three other systems representative of the existing wide variations in approach (Shulman, Mendez, Wolf-Klein), as well as with the CDT system used in the Mini-Cog, which combines clock drawing with delayed recall.

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The recruitment of male and older primary care patients is complicated by their tendency to refuse participation in WR screening for a treatment-outcome study of milder depression. Although each recruitment strategy offers advantages and disadvantages, the simultaneous use of both is recommended to recruit the most patients in the least amount of time.

No abstract