Constructing Item Banks for Measuring Quality of Life in Refractive Error.
Significance: Existing patient-reported outcome instruments in refractive error are paper-based questionnaires. They are not comprehensive and psychometrically robust. This study has identified the content of the refractive error-specific item banks that aim to provide comprehensive and scientific m...
| Published in: | Optometry & Vision Science Vol. 95; no. 7; pp. 575 - 588 |
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| Main Authors: | , , , , , , , , , , , , , |
| Format: | research Journal Article |
| Published: |
Wiley-Blackwell
Jul2018
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=130502358&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 130502358 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10405488 1X24 jtl: Optometry & Vision Science issn: 10405488 maglogo: N pubinfo: dt: Jul2018 vid: 95 iid: 7 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 130502358 130502358 NLM29957741 130502358 10.1097/OPX.0000000000001246 NLM29957741 130502358 ppf: 575 ppct: 13 formats: tig: atl: Constructing Item Banks for Measuring Quality of Life in Refractive Error. aug: au: Kandel, Himal Khadka, Jyoti Fenwick, Eva K. Shrestha, Mohan Krishna Sharma, Sadhana Sharma, Binita Kafle, Kopila Kharal, Anish Kaiti, Raju Dhungana, Purushottam Nepal, Bhagavat Prasad Thapa, Suman Lamoureux, Ecosse Pesudovs, Konrad affil: NHMRC Centre for Clinical Eye Research, Flinders University, Adelaide, South Australia, Australia sug: subj: Quality of Life Psychosocial Factors Visual Acuity Physiology Refractive Errors Psychosocial Factors Psychometrics Equipment and Supplies Human Female Prospective Studies Male Nepal Refraction, Ocular Australia Qualitative Studies Validation Studies Comparative Studies Evaluation Research Multicenter Studies Arthritis Impact Measurement Scales Ferrans and Powers Quality of Life Index Impact of Events Scale Scales Female Male ab: Significance: Existing patient-reported outcome instruments in refractive error are paper-based questionnaires. They are not comprehensive and psychometrically robust. This study has identified the content of the refractive error-specific item banks that aim to provide comprehensive and scientific measurement of refractive error-specific quality of life.Purpose: The purpose of this study was to identify minimally representative, optimally informative, and efficient sets of items for measuring quality of life in people with refractive error.Methods: First, items were identified from existing patient-reported outcome instruments. Second, items were developed from qualitative studies with people with refractive error (48 and 101 in-depth interviews in Australia and Nepal, respectively). Third, classification and selection of items were done based on a set of systematic criteria using an iterative process of binning and winnowing. The resulting items underwent cognitive testing with people with refractive error in Australia and in Nepal. Each step was guided by an expert panel consensus.Results: We retrieved 792 items from the existing patient-reported outcome instruments. From the interviews conducted in Australia, a total of 2367 comments were coded into 807 initial items. Similarly, from the interviews conducted in Nepal, 3477 comments were coded into 914 initial items. After binning and winnowing, followed by cognitive testing, a final set of items comprising 337 items for the Item-pool (Australia) and 308 items for the Item-pool (Nepal), both spanning 12 domains, was obtained. Forty-seven percent of items were common across the two item pools. In the Item-pool (Nepal), 65% items were common for corrected and uncorrected refractive error.Conclusions: We identified the content of two different sets of item banks to comprehensively measure the impact of refractive error on quality of life for people in Australia and Nepal, which may be applicable to high-income country settings and low- and middle-income country settings, respectively. Future work aims to develop computer-adaptive testing system to administer the item banks, resulting in useful measurement tools for researchers, clinicians, and policy planners. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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