Abstract
INTRODUCTION: It is unclear how midlife depression and anxiety affect dementia risk. We examined this in a Norwegian cohort followed for 30 years. METHODS: Dementia status at age 70+ in the fourth wave of the Tr & oslash;ndelag Health Study (HUNT4, 2017-2019, N = 9745) was linked with anxiety and depression from HUNT1 (1984-1985), HUNT2 (1995-1997), HUNT3 (2006-2008), and HUNT4. Longitudinal anxiety and depression score, and prevalence trajectories during 1984-2019 by dementia status at HUNT4 were fitted using mixed effects regression adjusting for age, sex, education, and lifestyle and health factors. RESULTS: Dementia at HUNT4 was associated with higher case prevalence at all waves, from 1.9 percentage points (pp) (95% CI: 0.1-3.7) higher at HUNT1 to 7.6 pp (95% CI: 5.7-9.6) higher at HUNT4. DISCUSSION: Our findings show that depression and anxiety was more common more than 30 years before dementia onset in those who later developed dementia.
Original language | English |
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Article number | e70036 |
Number of pages | 12 |
Journal | Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring |
Volume | 16 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Oct 2024 |
Keywords
- Alzheimer's disease
- anxiety
- association between anxiety and dementia
- association between depression and dementia
- dementia
- depression
- depressive symptoms
- mental distress
- midlife anxiety
- midlife anxiety and depression
- midlife depression
- risk factor for dementia
- trajectories
- ALZHEIMERS-DISEASE
- COGNITIVE DECLINE
- INCREASED RISK
- SYMPTOMS
- LIFE