Table 1

Cohort characteristics of patients with dementia with Lewy bodies (DLB) or Alzheimer's disease (AD)

CharacteristicDLB (n=27)AD (n=17)Significance
Positive family history of PD
    Yes22%6%NS
Positive family history of dementia
    Yes33%35%NS
Past psychiatric history
    Yes19%24%NS
Alcohol coNSumption
    Moderate56%70%NS
    Excessive4%6%
History of smoking
    Smoker4%12%NS
    Ex-smoker11%18%
Fluctuating course of illness
    Yes85%12%p<0.001
Acute confusional states
    Yes22%12%NS
Visual hallucinatioNS
    Once only26%6%p<0.001
    Persistent67%0%
Tremor
    Yes59%24%p<0.03
Rigidity
    Yes63%6%p<0.001
Akinesia/bradykinesia
    Yes67%18%p<0.01