Evidence map›Paper›PMID 33270788›Full record

ArticlePloS one2020

The cross-sectional association between mean corpuscular volume level and cognitive function in Chinese over 45 years old: Evidence from the China Health and Retirement Longitudinal Study.

Yao Chen, Chen'Xi' Nan Ma, Lan Luo, Jieyun Yin, Zhan Gao, Zengli Yu, Zhongxiao Wan

Abstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

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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

7 authors.

Yao ChenCollege of Public Health, Zhengzhou University, Zhengzhou, Henan, China.
Chen'Xi' Nan MaSchool of Public Health, Medical College of Soochow University, Suzhou, China.
Lan LuoSchool of Public Health, Medical College of Soochow University, Suzhou, China.
Jieyun YinSchool of Public Health, Medical College of Soochow University, Suzhou, China.
Zhan GaoThe Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan, China.
Zengli YuCollege of Public Health, Zhengzhou University, Zhengzhou, Henan, China.
Zhongxiao WanCollege of Public Health, Zhengzhou University, Zhengzhou, Henan, China.ORCID 0000-0002-6297-5933

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fewer studies have focused on the independent association between mean corpuscular volume (MCV) and cognitive performance. This study was designed to characterize the cross-sectional association between MCV and cognitive performance in a large sample of Chinese residents (age≥45 years) from the China Health and Retirement Longitudinal Study (CHARLS). A total of 4023 male and 4173 female adults with MCV ≥ 80 fl were included for analysis. By multivariable linear regression analysis, for the total subjects, MCV level was significantly negatively associated with global cognitive function and episodic memory. When adjusted by sex, only in male subjects, higher MCV level was associated with reduced scores for global cognitive function, episodic memory and mental status. Via binary logistic regression analysis, the higher MCV level (MCV>100 fl) was associated with poor global cognitive function (OR = 1.601; 95% CI = 1.198-2.139; p = 0.001), episodic memory (OR = 1.679; 95% CI = 1.281-2.201; p<0.001), and mental status (OR = 1.422; 95% CI = 1.032-1.959; p = 0.031) for the whole participants. When testing this association by sex, the significant relationship between higher MCV level with worse episodic memory was observed both in male (OR = 1.690; 95% CI = 1.211-2.358; p = 0.002) and female (OR = 1.729; 95% CI = 1.079-2.770; p = 0.023) subjects; while the association between higher MCV level and poor global cognitive function (OR = 1.885; 95% CI = 1.329, 2.675; p<0.001) and mental status (OR = 1.544; 95% CI = 1.034, 2.306; p = 0.034) only existed in male subjects. Further studies are warranted to clarify the association between MCV level and cognitive performance by considering sex into consideration both cross-sectionally and longitudinally.

Indexed as

AgedAged, 80 and overAsian PeopleChinaCognitionCognitive DysfunctionCross-Sectional StudiesErythrocyte IndicesFemaleHumansLongitudinal StudiesMaleMemory, EpisodicMiddle AgedNeuropsychological Tests

Identifiers

PMID33270788
PMCPMC7714155

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