Time to diagnosis in young-onset dementia as compared with late-onset dementia

School for Mental Health and Neuroscience, Alzheimer Centre Limburg, Maastricht University Medical Centre, Maastricht, The Netherlands.
Psychological Medicine (Impact Factor: 5.94). 05/2012; 43(2):1-10. DOI: 10.1017/S0033291712001122
Source: PubMed


BACKGROUND: The 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.Method
Data on 235 YOD and 167 LOD patients collected from caregivers from two prospective cohort studies were used. Multiple linear regression analysis was performed. RESULTS: The 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. CONCLUSIONS: There is a need to raise special awareness of YOD to facilitate a timely diagnosis.

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Available from: Myrra J Vernooij-Dassen
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    • "This is due, in part, to the lack of awareness of EOD and the absence of services for younger people with dementia. The lower prevalence of EOD and broader differential diagnoses may also contribute to the greater length of time to obtain an accurate diagnosis and comparatively high rates of misdiagnosis (Kuruppu & Matthews, 2013; van Vliet et al., 2013). Diagnostic delays can contribute to patient and caregiver stress, and may hinder informed care planning and access to support services (Svanberg et al., 2011). "
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    ABSTRACT: Objective: Dementia is increasingly recognized as a public health priority, but little is known about persons with early-onset dementia (EOD). The objectives of this article are (a) to compare the socio-demographic and health characteristics of people with EOD and late-onset dementia (LOD) and (b) to examine the relationships between EOD and overall health and life stress. Method: Data were from the Survey on Living With Neurological Conditions in Canada (SLNCC). Logistic regression models were used to identify the characteristics associated with EOD and LOD, and to assess the impact of EOD on overall health and life stress. Results: Compared with LOD, individuals with EOD were more likely to be male, to have a mood disorder, and to have a longer illness duration. EOD was associated with high life stress, but not with negative overall health. Discussion: This study identified attributes associated with EOD that have important implications for service planning.
    Full-text · Article · Nov 2015 · Journal of Aging and Health
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    ABSTRACT: OBJECTIVE: To investigate the time from symptom onset to institutionalization in persons with young-onset dementia (YOD) and compare these findings with late-onset dementia (LOD), and to determine which factors predict institutionalization in persons with YOD compared with LOD. DESIGN/SETTING: Longitudinal study of community-dwelling patients with YOD and LOD and their caregivers. PARTICIPANTS: A total of 226 patients with YOD and 102 with LOD and their informal caregivers were recruited through memory clinics and health care facilities. MEASUREMENTS: Cox proportional hazard models were used to relate covariates with time to institutionalization. The main outcome was time from symptom onset to institutionalization. Key predictors were cohort (YOD or LOD), neuropsychiatric symptoms, caregiver distress caused by neuropsychiatric symptoms, and caregivers' sense of competence (Short Sense of Competence Questionnaire total score). RESULTS: The time from symptom onset to institutionalization was nearly 9 years for patients with YOD compared with approximately 4 years for patients with LOD. In the YOD group, apathy significantly predicted time of institutionalization. Furthermore, the caregiver's competence in caring for the person with dementia significantly predicted institutionalization in both groups. CONCLUSIONS: Patients with YOD are cared for at home for a longer period than patients with LOD. The results of this study underline the importance of a timely diagnosis for these patients and their families to facilitate the initiation of appropriate care and support. Support programs aimed at enhancing the caregivers' sense of competence and ability to deal with neuropsychiatric symptoms, especially apathy, may postpone the institutionalization of the patient.
    Full-text · Article · Nov 2012 · Journal of the American Medical Directors Association
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    ABSTRACT: Aim: The burden of early-onset dementia (EOD) is often overshadowed by an ageing population. Methods: A questionnaire comprising 12 items was completed by 18 patients with EOD (15 with Alzheimer's disease [AD] and 3 with frontotemporal dementia) and 39 caregivers (20 spouses, 8 children, 7 siblings, 2 carers, and 2 health professionals). The onset of patients' symptoms was prior to the age of 65 years. Caregivers had to be supporting someone who matched these criteria. Results: Early recognition and referral was perceived as the principle area of improvement by both patients (94.4%) and carers (69.2%; P < .0002). Patients evaluated "diagnosis" as the area of most need (88.9%) compared with caregivers who rated "treatment" (69.2%) as their principle concern. Conclusion: The perceived concerns of patients with EOD differ from that of the caregivers. Continued consumer involvement is essential in ensuring a tailored approach to young people with dementia.
    No preview · Article · Dec 2012 · American Journal of Alzheimer s Disease and Other Dementias
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