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Table 2 Correlation of IQCODE scores and neuropsychological testing

From: Informant questionnaire on cognitive decline in the elderly (IQCODE) for assessing the severity of dementia in patients with Alzheimer’s disease

  MMSE DRS ADAS-cog
Mild dementia 0.009 0.115 0.137
Moderate dementia −0.409** − 0.324** 0.370**
Sever dementia −0.131 −0.193 0.197
All −0.528** −0.436** 0.477**
  1. Abbreviations: MMSE the mini-mental state examination, DRS the Mattis =dementia rating scale, ADAS-cog the Alzheimer’s disease assessment scale-cognitive subscale
  2. *P < 0.05, **P < 0.01