• D van Vliet, M E de Vugt, C Bakker, Y A L Pijnenburg, M J F J Vernooij-Dassen, R T C M Koopmans, and F R J Verhey.
• School for Mental Health and Neuroscience, Alzheimer Centre Limburg, Maastricht University Medical Centre, Maastricht, The Netherlands.
• Psychol Med. 2013 Feb 1; 43 (2): 423-32.

BackgroundThe extent to which specific factors influence diagnostic delays in dementia is unclear. Therefore, the aim of the present study was to compare duration from symptom onset to diagnosis for young-onset dementia (YOD) and late-onset dementia (LOD) and to assess the effect of age at onset, type of dementia, gender, living situation, education and family history of dementia on this duration.MethodData on 235 YOD and 167 LOD patients collected from caregivers from two prospective cohort studies were used. Multiple linear regression analysis was performed.ResultsThe duration between symptom onset and the diagnosis of YOD exceeded that of LOD by an average of 1.6 years (2.8 v. 4.4 years). Young age and being diagnosed with frontotemporal dementia were related to increases in the time to diagnosis. Subjects with vascular dementia experienced shorter time to diagnosis.ConclusionsThere is a need to raise special awareness of YOD to facilitate a timely diagnosis.

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