Evidence map›Paper›PMID 36125836›Full record

SynthesisCurrent Alzheimer research2022

Cognitive Advantage of Bilingualism Over Monolingualism in Older Adults: A Meta-Analysis.

Si Chen, Yuying Lin, Shufang Zuo, Ziyu Wang, Jinghong Liang, Zheng Jiang, Yue Xu, Peiyu Wang, Xiuchen Jing, Lu Lin

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Current Alzheimer research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–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

10 citing papers in PubMed.

  1. Association Between Cognitively Stimulating Activities and Cognitive Function in Older Adults Living in Residential Care Homes.Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society · 2026
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  2. Article
  3. Article
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  6. Protective effect of bilingualism on aging, MCI, and dementia: A community-based study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
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

10 authors.

Si ChenThe First Affiliated Hospital of Soochow University, Suzhou 215006, China.
Yuying LinThe First Affiliated Hospital of Soochow University, Suzhou 215006, China.
Shufang ZuoSchool of Nursing, Medical College of Soochow University, Suzhou 215006, China.
Ziyu WangSchool of Nursing, Medical College of Soochow University, Suzhou 215006, China.
Jinghong LiangDepartment of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
Zheng JiangSchool of Nursing, Medical College of Soochow University, Suzhou 215006, China.
Yue XuSchool of Nursing, Medical College of Soochow University, Suzhou 215006, China.
Peiyu WangSchool of Nursing, Medical College of Soochow University, Suzhou 215006, China.
Xiuchen JingSchool of Nursing, Medical College of Soochow University, Suzhou 215006, China.
Lu LinThe First Affiliated Hospital of Soochow University, Suzhou 215006, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aimed to explore whether bilingual older adults had a cognitive advantage over their monolingual counterparts, and validate the influence of cognition-related (participants' cognitive condition, the cognitive domain assessed), and bilingualism-related factors (second language proficiency, frequency of use, acquisition time, and immigration status of participants)on the cognitive advantage of bilingualism.

methodsThrough a systematic search of nine databases (Web of Science, PubMed, Elsevier Science Direct, Cochrane Library, Embase, PsycINFO, CNKI, VIP and Wanfang) from the inception to April 2021, observational studies with bilingual and monolingual older adults as participants and cognitive function scores as outcome measures were included. Two reviewers independently completed the selection and methodological quality assessment of studies using the JBI cross-sectional study quality evaluation tool and used a pre-designed table for data extraction and sorting.

resultsFourteen studies with 51 tasks were included, involving 3737 participants (bilingual group: 1695, monolingual group: 2042). The overall results of the meta-analysis showed that bilingualism had a small cognitive advantage over monolingualism in older adults [SMD=0.23, 95%CI (0.07, 0.38), P=0.004]. In addition, the subgroup analyses indicated that factors such as participants' cognitive condition, the cognitive domain assessed, second language proficiency, acquisition time, and immigration status of participants impacted the cognitive advantage of bilingualism in older adults.

conclusionBilingualism had a mild cognitive advantage over monolingualism in older adults, which was more prominent in older adults with mild cognitive impairment than in cognitively healthy ones, more evident in global cognitive function and inhibitory control than in other individual cognitive domains, and might be influenced by the proficiency and acquisition time of second language as well as the immigration status of older adults.

Indexed as

Cognition DisordersCognitive DysfunctionMultilingualismAgedCognitionCross-Sectional StudiesHumansAlzheimer’s diseasebilingualismCognitive advantageMCImonolingualismolder adults

Identifiers

What OpenQuestion holds

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Registered trials

None linked

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.