Evidence map›Paper›PMID 35140841›Full record

ArticleMalawi medical journal : the journal of Medical Association of Malawi2020

Validation and use of quality of life impact of refractive correction questionnaire in spectacle wearers in Malawi: A clinic-based study.

Dinesh Kaphle, Himal Kandel, Jyoti Khadka, Khathutshelo Percy Mashige, Joseph Matiya Msosa, Kovin Shunmugam Naidoo

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Malawi medical journal : the journal of Medical Association of Malawi, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 25% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 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 2 countries.

Dinesh KaphleDepartment of Optometry, Malawi College of Health Sciences, Lilongwe, Malawi.
Himal KandelDiscipline of Ophthalmology, Save Sight Institute, Sydney Medical School, The University of Sydney, Sydney, Australia.
Jyoti KhadkaSouth Australian Health and Medical Research Institute, Healthy Ageing Research Consortium, Adelaide, Australia.
Khathutshelo Percy MashigeDepartment of Optometry, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
Joseph Matiya MsosaKamuzu Central Hospital, First Eye Hospital, Lilongwe, Malawi.
Kovin Shunmugam NaidooDepartment of Optometry, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
University of KwaZulu-Natal · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo assess the psychometric properties of the QIRC questionnaire and use it as an outcome measure in spectacle wearers attending an eye clinic in Malawi.

methodsParticipants who had uncorrected distance visual acuity of below 6/18 and improved to 6/9 or better with spectacles on both eyes were included in the study. The participants self-administered the Chichewa version of the QIRC questionnaire that was translated and culturally adapted for Malawian settings. Psychometric evaluation of the QIRC responses was carried out using the WinSteps software (Version 3.92.1; Winsteps, Chicago, IL) by applying the Andrich rating scale model of the Rasch analysis.

resultsOne hundred and forty-three participants (mean age ± standard deviation, 27.64 ± 2.91; age range; 16 to 39 years; male, 51.7%) completed the QIRC. The Chichewa QIRC had satisfactory psychometric properties (Ordered response categories, Person separation index, 1.93; Item separation index, 3.42; Targeting 0.70) including excellent Rasch-model fit statistics (Infit and Outfit MnSq < 1.30 for all items). The QIRC score was not significantly associated with sex, age, magnitude of refractive error, occupation and status of previous spectacle wear (p> 0.05 for all). The QIRC scores negatively correlated with uncorrected visual acuity (in logMAR) in the better eye (spearman's rho=-0.34, p < 0.001).

conclusionThe translated and culturally adapted version of the QIRC Questionnaire had satisfactory psychometric properties to measure the refractive error-specific quality of life in Malawi. It performed well as an outcome measure of spectacle wear.

Indexed as

Malawiquality of lifeRasch analysisspectaclesvalidation

Identifiers

PMID35140841
PMCPMC8788590
OpenAlexW3042184068

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LicenceCC BY-NC-ND
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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.