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Short-term trends in dementia prevalence in Germany between the years 2007 and 2009
Doblhammer G, Fink A, Fritze T.. Alzheimer's & dementia : the journal of the Alzheimer's Association, 2014-10-07
Topic: Health services, long-term care and technology
Recent studies have been cautiously optimistic about declining trends in dementia prevalence and incidence. Newly available claims data from a German public health insurance company covering 30% of the total population permitted us to explore short-term trends based on millions of observations up to the highest ages. Diagnoses stemmed from the inpatient and outpatient services and covered both the community-dwelling population and those living in nursing homes. Data spanning more than 3 years were examined, and the examination revealed a significant yearly reduction between 1% and 2% in the prevalence of dementia among women aged 75 to 84 years. The extent of the reduction was comparable with reports from earlier studies. A similar tendency existed among men, however, statistically not significant. Trends in medical, lifestyle, and societal risk factors of dementia may have contributed to this decline.
Key findings
- Data spanning more than 3 years were examined, and the examination revealed a significant yearly reduction between 1% and 2% in the prevalence of dementia among women aged 75 to 84 years.
- A similar tendency existed among men, however, statistically not significant.
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Study details
- Evidence strengthLow
How this study scored 40/100
Published in a leading specialty journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it. We have no data on journal's citation record, times cited, citations per year, impact for its field and year, cited by studies here, still being cited, senior author's track record, institution's track record and multi-centre collaboration, so those were left out: it earned 23 of the 58 points we could judge it on, which is 40 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 9 / 10 | Tier 2 — leading specialty journal (Alzheimer's & dementia : the journal of the Alzheimer's Association) |
| Journal's citation record | — / 4 | No journal record from OpenAlex — left out of this score |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 2015 — within 20 year(s) of the newest study here |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | — / 7 | No citation count (not found in OpenAlex) — left out of this score |
| Citations per year | — / 5 | No citation count or no year — left out of this score |
| Impact for its field and year | — / 6 | No field-weighted citation impact (OpenAlex has none yet) — left out of this score |
| Cited by studies here | — / 6 | Not yet checked against this library's citation graph — left out of this score |
| Still being cited | — / 4 | No yearly citation counts — left out of this score |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multi-centre collaboration | — / 3 | Institutions not listed — left out of this score |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 25301681) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 23 / 58 | Scored on 11 of 20 parts. We have no data for the rest, so they are left out: 23 of the 58 points we could judge it on is 40 out of 100. |
| Total | 40 / 100 | — |
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APA 7th
Doblhammer, G., Fink, A., & Fritze, T. (2015). Short-term trends in dementia prevalence in Germany between the years 2007 and 2009. Alzheimer's & dementia : the journal of the Alzheimer's Association. https://doi.org/10.1016/j.jalz.2014.02.006
Vancouver
Doblhammer G, Fink A, Fritze T. Short-term trends in dementia prevalence in Germany between the years 2007 and 2009. Alzheimer's & dementia : the journal of the Alzheimer's Association. 2015. doi:10.1016/j.jalz.2014.02.006. PMID: 25301681.
BibTeX
@article{doblhammer2015-25301681,
author = {Doblhammer, G. and Fink, A. and Fritze, T.},
title = {{Short-term trends in dementia prevalence in Germany between the years 2007 and 2009}},
journal = {Alzheimer's \& dementia : the journal of the Alzheimer's Association},
year = {2015},
doi = {10.1016/j.jalz.2014.02.006},
pmid = {25301681},
url = {https://doi.org/10.1016/j.jalz.2014.02.006}
}
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