Evidence map›Paper›PMID 16248900›Full record

ArticleHealth and quality of life outcomes2005

Psychometric properties of the 25-item National Eye Institute Visual Function Questionnaire (NEI VFQ-25), Japanese version.

Yoshimi Suzukamo, Tetsuro Oshika, Mitsuko Yuzawa, Yoshihiro Tokuda, Atsuo Tomidokoro, Kotaro Oki, Carol M Mangione, Joseph Green, Shunichi Fukuhara

Abstract readValidation Study
In one paragraph

Article in Health and quality of life outcomes, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 3 pooled it
–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

97 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  3. Choosing appropriate patient-reported outcomes instrument for glaucoma research: a systematic review of vision instruments.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2011
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  17. Choroideremia: The Endpoint Endgame.International journal of molecular sciences · 2023
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37 more citing papers are in PubMed but not listed here.

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.

Yoshimi SuzukamoDepartment of Epidemiology and Healthcare Research, Kyoto University, Kyoto, Japan. suzukamo@pbh.med.kyoto-u.ac.jp
Tetsuro Oshika
Mitsuko Yuzawa
Yoshihiro Tokuda
Atsuo Tomidokoro
Kotaro Oki
Carol M Mangione
Joseph Green
Shunichi Fukuhara

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe importance of evaluating the outcomes of health care from the standpoint of the patient is now widely recognized. The purpose of this study is to develop and test a Japanese version of the National Eye Institute Visual Function Questionnaire (NEI VFQ-25).

methodsA Japanese version was developed with a previously standardized method. The questionnaire and optional items were completed by 245 patients with cataracts, glaucoma, or age-related macular degeneration, by 110 others before and after cataract surgery, and by a reference group (n = 31). We computed rates of missing data, measured reproducibility and internal consistency reliability, and tested for convergent and discriminant validity, concurrent validity, known-groups validity, factor structure, and responsiveness to change.

resultsBased on information from the participants, some items were changed to 2-step items (asking if an activity was done, and if it was done, then asking how difficult it was). The near-vision and distance-vision subscales each had 1 item that was endorsed by very few participants, so these items were replaced with items that were optional in the English version. For example, more than 60% of participants did not drive, so the driving question was excluded. Reliability and validity were adequate for all subscales except driving, ocular pain, color vision, and peripheral vision. With cataract surgery, most scores improved by at least 20 points.

conclusionWith minor modifications from the English version, the Japanese NEI VFQ-25 can give reliable, valid, responsive data on vision-related quality of life, for group-level comparisons or for tracking therapeutic outcomes.

Indexed as

Sickness Impact ProfileSurveys and QuestionnairesAdultAgedAged, 80 and overCataractCataract ExtractionFemaleGlaucomaHumansJapanMacular DegenerationMaleMiddle AgedNational Institutes of Health (U.S.)Psychometrics

Identifiers

PMID16248900
PMCPMC1283746

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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.