DSM-5 major neurocognitive disorder | DSM-IV dementia | ||||
---|---|---|---|---|---|
Criteria | Algorithm | Criteria | Algorithm | ||
A. Both of the following: | A. Both of the following: | ||||
A1 | Concern of self or informant of significant cognitive decline in one or more cognitive domains | MAC-Q >24 or IQCODE >3.31 or recent doctor’s consultation about cognitive change or informant reported worsening of everyday cognitive functiona | A1 | Memory impairment | Mean z score for the learning and memory domain ≤ –2.0. |
A2 | Substantial impairment in cognitive performance in one or more cognitive domains | Mean z score for one or more of the following domains is ≤ –2.0: complex attention, executive function, learning and memory, language, perceptual/motor, social cognition or mean decline in performance between waves 3 and 4 that is </=-2.0 below norms on select testsf. | A2 | Substantial impairment in cognitive performance in one or more cognitive domains | Mean z scores ≤ –2 for one or more of: executive function, language, praxisb, gnosisb or mean decline in performance between waves 3 and 4 that is </=-2.0 below norms on select testsf. |
B | The cognitive deficits interfere with independence in everyday activity | Any self-reported problems due to memory on HRS-IADLc, or need for household/personal care help, or Bayer IADL >3.12, and (if A2 social cognition impaired, then also informant-reportedd change in social behaviors or emotion recognition) | B | A1 and A2 each cause significant social/occupational dysfunction and represent a decline | Any HRS-IADLc problems due to memory, or need for household/personal care help, or Bayer IADL >3.12, and (if A2 praxis or gnosis impaired then also informant-reportede difficulties in everyday praxis and object recognition) |
C | The cognitive deficits do not occur exclusively in the context of a delirium | Informant reports deficits started 6 months or more ago, or informant reported delirium signs present for less than duration of cognitive change | C | The cognitive deficits do not occur exclusively in the context of a delirium | Informant reports deficits started 6 months or more ago, or informant reported delirium signs present for less than duration of cognitive change |
D | The cognitive deficits are not better explained by another mental disorder | PHQ-9 < 10 and no informant-reported history of schizophrenia or other psychosis | D | The cognitive deficits are not better explained by another mental disorder | PHQ-9 < 10 and no informant-reported history of schizophrenia or other psychosis |