Evidence map›Paper›PMID 29941738›Full record

ArticleIndian journal of ophthalmology2018

Prevalence and causes of visual impairment among adults aged 15-49 years in a rural area of north India - A population-based study.

Sumit Malhotra, Praveen Vashist, Noopur Gupta, Mani Kalaivani, Ramashankar Rath, Sanjeev Kumar Gupta

Open access · diamondAbstract readMulticenter Study
In one paragraph

Article in Indian journal of ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% of its field
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

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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 at 1 institution in 1 country.

Sumit MalhotraCentre for Community Medicine, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, New Delhi, India.
Praveen VashistCommunity Ophthalmology, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, New Delhi, India.
Noopur GuptaDepartment of Ophthalmology, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, New Delhi, India.
Mani KalaivaniDepartment of Biostatistics, All India Institute of Medical Sciences, New Delhi, India.
Ramashankar RathCentre for Community Medicine, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, New Delhi, India.
Sanjeev Kumar GuptaCentre for Community Medicine, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, New Delhi, India.
Centre for Sight · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Very few studies have been conducted in India and other parts of the world on visual impairment among individuals aged 15-49 years. This study was conducted to determine the prevalence, causes, and associated factors of visual impairment among adults aged 15-49 years in a rural population of Jhajjar district, Haryana, north India. Methods: A population-based cross-sectional study was conducted in two blocks of Jhajjar district. A total of 34 villages were selected using probability proportionate to size sampling method. Adults aged 15-49 years were selected using compact segment cluster sampling approach. As part of the house-to-house survey, presenting visual acuity using screening chart corresponding to five "E" 6/12 optotypes was measured along with collection of other demographic details. The optometrists performed detailed eye assessment including repeat measurement of visual acuity using retro-illuminated conventional logMAR tumbling "E" charts, torch light examination, and non-cycloplegic refraction at a clinic site within the village to ascertain visual impairment and its cause. Results: Of 5,470 enumerated adults, 5,117 (94%) completed all study procedures. The age- and sex-adjusted prevalence of visual impairment was found to be 1.85% [95% confidence interval (CI): 1.48, 2.23] and blindness was 0.09% (95% CI: 0.01, 0.18). The age- and sex-adjusted prevalence of unilateral visual impairment was 1.11% (95% CI: 0.81, 1.41). Uncorrected refractive errors (84%) contributed maximum to visual impairment in this age group. The visual impairment in study participants was found to be associated with age and educational status. Conclusion: At the community level, uncorrected refractive errors contribute largely to visual impairment in the age group of 15-49 years.

Indexed as

Health SurveysVisual AcuityAdolescentAdultAge DistributionCross-Sectional StudiesFemaleHumansIndiaMaleMiddle AgedPrevalenceRisk FactorsRural PopulationSex DistributionVision, LowAdultsJhajjarprevalenceruralvisual impairment

Identifiers

PMID29941738
PMCPMC6032730
OpenAlexW2810566280

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.