Cross-cultural validation of the National Eye Institute Visual Function Questionnaire

Kaziwe Mollazadegan, Jinhai Huang, Jyoti Khadka, Qinmei Wang, Feng Yang, Rongrong Gao, Konrad Pesudovs

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

PURPOSE: To assess the native and the previously Rasch-modified National Eye Institute Visual Function Questionnaire (NEI VFQ) scales in a Chinese population.

SETTING: Eye Hospital of Wenzhou Medical University, Wenzhou, China.

DESIGN: Questionnaire development.

METHODS: Patients on the waiting list for cataract surgery completed the 39-item NEI VFQ (NEI VFQ-39). Rasch analysis was performed in 3 steps as follows: (1) Assess the psychometric properties of the original NEI VFQ. (2) Reassess the previously proposed Rasch-modified NEI VFQ scales by Pesudovs et al. (2010) in Chinese populations. (3) Compare the scores of previously recommended scales of the NEI VFQ with new Rasch-modified scales of the same questionnaire using Bland-Altman plots.

RESULTS: Four hundred thirty-five patients (median age 70 years; range 35 to 90 years) completed the NEI VFQ-39. Response categories for 4 question types were dysfunctional and therefore repaired. The original NEI VFQ-39 and NEI VFQ-25 showed good measurement precision. However, both versions showed multidimensionality, misfitting items, suboptimum targeting, and nonfunctioning subscales. Using the previously proposed Rasch-modified scales of the NEI VFQ yielded valid measurement of each construct in the 39-item and 25-item questionnaire. Comparison between the earlier proposed NEI VFQ scales and the new versions developed in this population showed good agreement.

CONCLUSIONS: The original NEI VFQ was once again found to be flawed. The previously proposed Rasch-analyzed versions of the NEI VFQ and the new Chinese versions showed good agreement.

LanguageEnglish
Pages774-84
Number of pages11
JournalJournal of cataract and refractive surgery
Volume40
Issue number5
DOIs
Publication statusPublished - May 2014
Externally publishedYes

Keywords

  • Adult
  • Aged
  • Aged, 80 and over
  • Asian Continental Ancestry Group
  • Australia
  • Cataract
  • China
  • Cross-Cultural Comparison
  • Female
  • Humans
  • Male
  • Middle Aged
  • National Eye Institute (U.S.)
  • Reproducibility of Results
  • Sickness Impact Profile
  • Surveys and Questionnaires
  • United States
  • Vision Disorders
  • Vision, Ocular
  • Visual Acuity
  • Comparative Study
  • Journal Article
  • Validation Studies

Cite this

Mollazadegan, Kaziwe ; Huang, Jinhai ; Khadka, Jyoti ; Wang, Qinmei ; Yang, Feng ; Gao, Rongrong ; Pesudovs, Konrad. / Cross-cultural validation of the National Eye Institute Visual Function Questionnaire. In: Journal of cataract and refractive surgery. 2014 ; Vol. 40, No. 5. pp. 774-84.
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abstract = "PURPOSE: To assess the native and the previously Rasch-modified National Eye Institute Visual Function Questionnaire (NEI VFQ) scales in a Chinese population.SETTING: Eye Hospital of Wenzhou Medical University, Wenzhou, China.DESIGN: Questionnaire development.METHODS: Patients on the waiting list for cataract surgery completed the 39-item NEI VFQ (NEI VFQ-39). Rasch analysis was performed in 3 steps as follows: (1) Assess the psychometric properties of the original NEI VFQ. (2) Reassess the previously proposed Rasch-modified NEI VFQ scales by Pesudovs et al. (2010) in Chinese populations. (3) Compare the scores of previously recommended scales of the NEI VFQ with new Rasch-modified scales of the same questionnaire using Bland-Altman plots.RESULTS: Four hundred thirty-five patients (median age 70 years; range 35 to 90 years) completed the NEI VFQ-39. Response categories for 4 question types were dysfunctional and therefore repaired. The original NEI VFQ-39 and NEI VFQ-25 showed good measurement precision. However, both versions showed multidimensionality, misfitting items, suboptimum targeting, and nonfunctioning subscales. Using the previously proposed Rasch-modified scales of the NEI VFQ yielded valid measurement of each construct in the 39-item and 25-item questionnaire. Comparison between the earlier proposed NEI VFQ scales and the new versions developed in this population showed good agreement.CONCLUSIONS: The original NEI VFQ was once again found to be flawed. The previously proposed Rasch-analyzed versions of the NEI VFQ and the new Chinese versions showed good agreement.",
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author = "Kaziwe Mollazadegan and Jinhai Huang and Jyoti Khadka and Qinmei Wang and Feng Yang and Rongrong Gao and Konrad Pesudovs",
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Cross-cultural validation of the National Eye Institute Visual Function Questionnaire. / Mollazadegan, Kaziwe; Huang, Jinhai; Khadka, Jyoti; Wang, Qinmei; Yang, Feng; Gao, Rongrong; Pesudovs, Konrad.

In: Journal of cataract and refractive surgery, Vol. 40, No. 5, 05.2014, p. 774-84.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Cross-cultural validation of the National Eye Institute Visual Function Questionnaire

AU - Mollazadegan, Kaziwe

AU - Huang, Jinhai

AU - Khadka, Jyoti

AU - Wang, Qinmei

AU - Yang, Feng

AU - Gao, Rongrong

AU - Pesudovs, Konrad

N1 - Copyright © 2014 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.

PY - 2014/5

Y1 - 2014/5

N2 - PURPOSE: To assess the native and the previously Rasch-modified National Eye Institute Visual Function Questionnaire (NEI VFQ) scales in a Chinese population.SETTING: Eye Hospital of Wenzhou Medical University, Wenzhou, China.DESIGN: Questionnaire development.METHODS: Patients on the waiting list for cataract surgery completed the 39-item NEI VFQ (NEI VFQ-39). Rasch analysis was performed in 3 steps as follows: (1) Assess the psychometric properties of the original NEI VFQ. (2) Reassess the previously proposed Rasch-modified NEI VFQ scales by Pesudovs et al. (2010) in Chinese populations. (3) Compare the scores of previously recommended scales of the NEI VFQ with new Rasch-modified scales of the same questionnaire using Bland-Altman plots.RESULTS: Four hundred thirty-five patients (median age 70 years; range 35 to 90 years) completed the NEI VFQ-39. Response categories for 4 question types were dysfunctional and therefore repaired. The original NEI VFQ-39 and NEI VFQ-25 showed good measurement precision. However, both versions showed multidimensionality, misfitting items, suboptimum targeting, and nonfunctioning subscales. Using the previously proposed Rasch-modified scales of the NEI VFQ yielded valid measurement of each construct in the 39-item and 25-item questionnaire. Comparison between the earlier proposed NEI VFQ scales and the new versions developed in this population showed good agreement.CONCLUSIONS: The original NEI VFQ was once again found to be flawed. The previously proposed Rasch-analyzed versions of the NEI VFQ and the new Chinese versions showed good agreement.

AB - PURPOSE: To assess the native and the previously Rasch-modified National Eye Institute Visual Function Questionnaire (NEI VFQ) scales in a Chinese population.SETTING: Eye Hospital of Wenzhou Medical University, Wenzhou, China.DESIGN: Questionnaire development.METHODS: Patients on the waiting list for cataract surgery completed the 39-item NEI VFQ (NEI VFQ-39). Rasch analysis was performed in 3 steps as follows: (1) Assess the psychometric properties of the original NEI VFQ. (2) Reassess the previously proposed Rasch-modified NEI VFQ scales by Pesudovs et al. (2010) in Chinese populations. (3) Compare the scores of previously recommended scales of the NEI VFQ with new Rasch-modified scales of the same questionnaire using Bland-Altman plots.RESULTS: Four hundred thirty-five patients (median age 70 years; range 35 to 90 years) completed the NEI VFQ-39. Response categories for 4 question types were dysfunctional and therefore repaired. The original NEI VFQ-39 and NEI VFQ-25 showed good measurement precision. However, both versions showed multidimensionality, misfitting items, suboptimum targeting, and nonfunctioning subscales. Using the previously proposed Rasch-modified scales of the NEI VFQ yielded valid measurement of each construct in the 39-item and 25-item questionnaire. Comparison between the earlier proposed NEI VFQ scales and the new versions developed in this population showed good agreement.CONCLUSIONS: The original NEI VFQ was once again found to be flawed. The previously proposed Rasch-analyzed versions of the NEI VFQ and the new Chinese versions showed good agreement.

KW - Adult

KW - Aged

KW - Aged, 80 and over

KW - Asian Continental Ancestry Group

KW - Australia

KW - Cataract

KW - China

KW - Cross-Cultural Comparison

KW - Female

KW - Humans

KW - Male

KW - Middle Aged

KW - National Eye Institute (U.S.)

KW - Reproducibility of Results

KW - Sickness Impact Profile

KW - Surveys and Questionnaires

KW - United States

KW - Vision Disorders

KW - Vision, Ocular

KW - Visual Acuity

KW - Comparative Study

KW - Journal Article

KW - Validation Studies

U2 - 10.1016/j.jcrs.2013.10.040

DO - 10.1016/j.jcrs.2013.10.040

M3 - Article

VL - 40

SP - 774

EP - 784

JO - Journal of cataract and refractive surgery

T2 - Journal of cataract and refractive surgery

JF - Journal of cataract and refractive surgery

SN - 0886-3350

IS - 5

ER -