Evidence map›Paper›PMID 29554884›Full record

ArticleBMC ophthalmology2018

The Chinese Catquest-9SF: validation and application in community screenings.

Zequan Xu, Song Wu, Wenzhe Li, Yan Dou, Qiang Wu

Abstract readValidation Study
In one paragraph

Article in BMC ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

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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

5 authors.

Zequan XuDepartment of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, People's Republic of China.
Song WuSchool of Integrated Traditional and Western Medicine, Anhui University of Traditional Chinese Medicine, No. 103, Meishan Road, Hefei, Anhui, 230038, People's Republic of China.
Wenzhe LiClinical Medical College, Tianjin Medical University, No. 176 Xueyuan Road, Dagang District, Tianjin, 100270, People's Republic of China.
Yan DouDepartment of Foreign Languages, Hainan Medical University, No. 3, College Road, Longhua District, Haikou City, Hainan Province, 571100, People's Republic of China.
Qiang WuDepartment of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, People's Republic of China. qiang.Wu@shsmu.edu.cn.

Funding

Health Bureau of Shanghai City 201440029
6 · The paper itself

Abstract

backgroundThe purpose of this study was to validate the Chinese Catquest-9SF questionnaire in community screenings and explore the correlation between Catquest-9SF scores and Lens Opacities Classification System (LOCS) III cataract grading.

methodsThis was a prospective questionnaire validation study. The Catquest-9SF questionnaire was translated into Chinese and was completed by 104 Chinese cataract patients who were diagnosed in community screening. Rasch analysis was used to assess its psychometric properties, and Spearman correlation coefficient was employed to determine the correlation between Catquest-9SF scores and LOCS III cataract grading.

resultsThe Catquest-9SF questionnaire demonstrated ordered response categories and unidimensionality (item fit statistics range: 0.70-1.35); the PSI and PR of the category probability curves were 2.00 and 0.80, respectively. There was a fair but statistically significant correlation between Catquest-9SF (Q6, Q7, and Q8) and LOCS III scores and a moderate correlation between Q4 in Catquest-9SF and subcapsular components for the better eye (r = - 0.546, p < 0.001).

conclusionThe Chinese version of Catquest-9SF is a valid and reliable questionnaire in community screenings. Thus, this questionnaire may be expected to be an auxiliary tool for preliminary cataract screening use.

Indexed as

Activities of Daily LivingAgedAged, 80 and overCataractFemaleHumansMaleMass ScreeningMiddle AgedProspective StudiesPsychometricsReproducibility of ResultsSurveys and QuestionnairesCatquest-9SFPatient-reported outcomesQuestionnairesRasch analysisValidation

Identifiers

PMID29554884
PMCPMC5859537

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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.