Evidence map›Paper›PMID 21966372›Full record

ArticlePloS one2011

Incident dementia in a defined older Chinese population.

Ruoling Chen, Zhi Hu, Li Wei, Ying Ma, Zhuming Liu, John R Copeland

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 9 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 9 syntheses or guidelines pooled it.

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  6. Stroke and dementia risk: A systematic review and meta-analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2018
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  15. Socioeconomic and Contextual Differentials in Memory Decline: A Cross-Country Investigation Between England and China.The journals of gerontology. Series B, Psychological sciences and social sciences · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Ruoling ChenDivision of Health and Social Care Research, King's College London, London, United Kingdom. ruoling.chen@kcl.ac.uk
Zhi Hu
Li Wei
Ying Ma
Zhuming Liu
John R Copeland

Funding

Medical Research Council G106/1249
6 · The paper itself

Abstract

backgroundCurrent knowledge about incident dementia is mainly derived from studies undertaken in the West, showing that dementia is related to older age, low socio-economic status, lack of social network, depression and cardiovascular disease risk factors. We know little about incidence and predictors of dementia in China, where the prevalence is increasing and the patterns of risk factors are different.

methodsUsing a standard interview method, we examined 1526 non-demented people aged ≥65 years who had at least minimal educational level in China in a 7.5-year follow up. Incident dementia was diagnosed by GMS-AGECAT algorithms and psychiatrists.

resultsAge-standardised incidence of dementia was 14.7 per 1000 person-years (95%CI 11.3-18.2 per 1000 person-years). The increased risk was significantly associated with age, female gender (adjusted odds ratio 2.48, 95%CI 1.20-5.13), low educational levels, smoking, angina (2.58, 1.01-6.59) and living with fewer family members. Among participants with low educational level, the increased risk was associated with higher income, and with the highest and lowest occupational classes; adjusted odds ratio 2.74 (95%CI 1.12-6.70) for officers/teachers, 3.11 (1.61-6.01) for manual labourers/peasants.

conclusionsOur findings of high incidence of dementia and increased risk among people having low education levels but high income suggest a more potential epidemic and burden of dementia populations in China. Maintaining social network and activities and reducing cardiovascular factors in late life could be integrated into current multi-faceted preventive strategies for curbing the epidemic of dementia.

Indexed as

AgedAged, 80 and overAge FactorsChinaDementiaEducational StatusFemaleFollow-Up StudiesHealth SurveysHumansIncidenceMaleMultivariate AnalysisPrevalenceRisk FactorsSex Factors

Identifiers

PMID21966372
PMCPMC3179466

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.