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Table 3 Overlap between expert diagnoses using DSM-5 criteria and DSM-IV for dementia and MCI

From: Evaluation of a research diagnostic algorithm for DSM-5 neurocognitive disorders in a population-based cohort of older adults

DSM-IV dementia DSM-5 major NCD MCI DSM-5 mild NCD
No Yes No Yes
No 297 (87.9%) 41 (12.1%) No 172 (76.8%) 52 (23.2%)
Yes 3 (10.0%) 27 (90.0%) Yes 25 (17.4%) 119 (82.6%)
Kappa 0.494 (0.063) p < 0.001 Kappa 0.575 (0.043) p < 0.001
Specifiers DSM-5 DSM-IV Specifiers/subtypes DSM-5 MCI
Probable Alzheimer’s 17 (25%) 18 (60%) Amnestic—single 42 (24.6%) 46 (31.9%)
Possible Alzheimer’s 8 (11.8%) 7 (23.3%) Amnestic—multiple 40 (23.4%) 49 (34.0%)
Probable vascular 3 (4.4%) 1 (3.3%) Non-amnestic—single 27 (15.8%) 36 (25%)
Possible vascular 4 (5.9%) 0 (0%) Non-amnestic—multiple 9 (5.3%) 12 (8.3%)
Parkinson’s 4 (5.9%) 3 (10%) Probable Alzheimer’s 2 (1.2%) 0 (0%)
Lewy body 1 (1.5%) 1 (3.3%) Possible Alzheimer’s 2 (1.2%) 0 (0%)
Fronto-temporal 3 (4.4%) 0 (0%)    
Unspecified 28 (41.2%) 0 (0%) Unspecified 49 (34.4%)
Total 68 30 Total 171 144
  1. DSM Diagnostic and Statistical Manual of Mental Disorders, MCI mild cognitive impairment, NCD neurocognitive disorder