Evidence map›Paper›PMID 28149791›Full record

ArticleInternational journal of ophthalmology2017

Population-based survey of prevalence, causes, and risk factors for blindness and visual impairment in an aging Chinese metropolitan population.

Jian-Yan Hu, Liang Yan, Yong-Dong Chen, Xin-Hua Du, Ting-Ting Li, De-An Liu, Dong-Hong Xu, Yi-Min Huang, Qiang Wu

Abstract read
In one paragraph

Article in International journal of ophthalmology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

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  9. Protective Effect of Effective Components ofEvidence-based complementary and alternative medicine : eCAM · 2021
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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

9 authors.

Jian-Yan HuShanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
Liang YanShanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
Yong-Dong ChenShanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
Xin-Hua DuShanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
Ting-Ting LiShanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
De-An LiuCommunity Health Center, Xietu Street, Xuhui District, Shanghai 200233, China.
Dong-Hong XuCommunity Health Center, Xietu Street, Xuhui District, Shanghai 200233, China.
Yi-Min HuangCommunity Health Center, Xietu Street, Xuhui District, Shanghai 200233, China.
Qiang WuShanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo assess the prevalence, causes, and risk factors for blindness and visual impairment among elderly (≥60 years of age) Chinese people in a metropolitan area of Shanghai, China.

methodsRandom cluster sampling was conducted to identify participants among residents ≥60 years of age living in the Xietu Block, Xuhui District, Shanghai, China. Presenting visual acuity (PVA) and best-corrected visual acuity (BCVA) were checked by the Early Treatment Diabetic Retinopathy Study (ETDRS) visual chart. All eligible participants underwent a comprehensive eye examination. Blindness and visual impairment were defined according to World Health Organization (WHO) criteria.

resultsA total of 4190 persons (1688 men and 2502 women) participated in the study, and the response rate was 91.1%. Based on PVA, the prevalence of blindness was 1.1% and that of visual impairment was 7.6%. Based on BCVA, the prevalence of blindness and visual impairment decreased to 0.9% and 3.9%, respectively. Older (≥80 years of age) women, with low educational levels and smoking habits, exhibited a significantly greater chance for blindness and visual impairment than did those with high educational levels and no smoking habits (

conclusionOur findings help to identify the population in need of intervention, to highlight the need for additional eye healthcare services in urban China.

Indexed as

blindnesscross-sectional studyprevalencerisk factorvisual impairment

Identifiers

PMID28149791
PMCPMC5225363

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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.