Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study.
BACKGROUND: Hypnotics have been reported to be associated with dementia. However, the relationship between insomnia, hypnotics and dementia is still controversial. We sought to examine the risk of dementia in patients with long-term insomnia and the contribution of hypnotics. METHODS: Data was colle...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3492301?pdf=render |
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| author | Pin-Liang Chen Wei-Ju Lee Wei-Zen Sun Yen-Jen Oyang Jong-Ling Fuh |
| author_facet | Pin-Liang Chen Wei-Ju Lee Wei-Zen Sun Yen-Jen Oyang Jong-Ling Fuh |
| author_sort | Pin-Liang Chen |
| collection | DOAJ |
| description | BACKGROUND: Hypnotics have been reported to be associated with dementia. However, the relationship between insomnia, hypnotics and dementia is still controversial. We sought to examine the risk of dementia in patients with long-term insomnia and the contribution of hypnotics. METHODS: Data was collected from Taiwan's Longitudinal Health Insurance Database. The study cohort comprised all patients aged 50 years or older with a first diagnosis of insomnia from 2002 to 2007. The comparison cohort consisted of randomly selected patients matched by age and gender. Each patient was individually tracked for 3 years from their insomnia index date to identify whether the patient had a first diagnosis of dementia. Cox regression was used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS: We identified 5693 subjects with long-term insomnia and 28,465 individuals without. After adjusting for hypertension, diabetes mellitus, hyperlipidemia, and stroke, those with long-term insomnia had significantly higher risks of dementia (HR, 2.34; 95% CI, 1.92-2.85). Patients with long-term insomnia and aged 50 to 65 years had a higher increased risk of dementia (HR, 5.22; 95% CI, 2.62-10.41) than those older than 65 years (HR, 2.33; 95% CI, 1.90-2.88). The use of hypnotics with a longer half-life and at a higher prescribed dose predicted a greater increased risk of dementia. CONCLUSIONS: Patients with long-term use of hypnotics have more than a 2-fold increased risk of dementia, especially those aged 50 to 65 years. In addition, the dosage and half-lives of the hypnotics used should be considered, because greater exposure to these medications leads to a higher risk of developing dementia. |
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| format | Article |
| id | doaj.art-e12fbc34bac0425fbb46d2a0df68b22e |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-12T04:29:30Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-e12fbc34bac0425fbb46d2a0df68b22e2022-12-22T03:47:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01711e4911310.1371/journal.pone.0049113Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study.Pin-Liang ChenWei-Ju LeeWei-Zen SunYen-Jen OyangJong-Ling FuhBACKGROUND: Hypnotics have been reported to be associated with dementia. However, the relationship between insomnia, hypnotics and dementia is still controversial. We sought to examine the risk of dementia in patients with long-term insomnia and the contribution of hypnotics. METHODS: Data was collected from Taiwan's Longitudinal Health Insurance Database. The study cohort comprised all patients aged 50 years or older with a first diagnosis of insomnia from 2002 to 2007. The comparison cohort consisted of randomly selected patients matched by age and gender. Each patient was individually tracked for 3 years from their insomnia index date to identify whether the patient had a first diagnosis of dementia. Cox regression was used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS: We identified 5693 subjects with long-term insomnia and 28,465 individuals without. After adjusting for hypertension, diabetes mellitus, hyperlipidemia, and stroke, those with long-term insomnia had significantly higher risks of dementia (HR, 2.34; 95% CI, 1.92-2.85). Patients with long-term insomnia and aged 50 to 65 years had a higher increased risk of dementia (HR, 5.22; 95% CI, 2.62-10.41) than those older than 65 years (HR, 2.33; 95% CI, 1.90-2.88). The use of hypnotics with a longer half-life and at a higher prescribed dose predicted a greater increased risk of dementia. CONCLUSIONS: Patients with long-term use of hypnotics have more than a 2-fold increased risk of dementia, especially those aged 50 to 65 years. In addition, the dosage and half-lives of the hypnotics used should be considered, because greater exposure to these medications leads to a higher risk of developing dementia.http://europepmc.org/articles/PMC3492301?pdf=render |
| spellingShingle | Pin-Liang Chen Wei-Ju Lee Wei-Zen Sun Yen-Jen Oyang Jong-Ling Fuh Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study. PLoS ONE |
| title | Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study. |
| title_full | Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study. |
| title_fullStr | Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study. |
| title_full_unstemmed | Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study. |
| title_short | Risk of dementia in patients with insomnia and long-term use of hypnotics: a population-based retrospective cohort study. |
| title_sort | risk of dementia in patients with insomnia and long term use of hypnotics a population based retrospective cohort study |
| url | http://europepmc.org/articles/PMC3492301?pdf=render |
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