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Readability estimates for commonly used health-related quality of life surveys.

Paz SH, Liu H, Fongwa MN, Morales LS, Hays RD - Qual Life Res (2009)

Bottom Line: The percentage of items that require more than 5 years of formal schooling according to F-K was 50 for the EQ-5D, 53 for the SF-36, 80 for the VFQ-25, 85 for the QWB-SA, 100 for the HUI, HALex, and the MLHFQ.The percentage of items deemed harder than "easy" according to FRE was 50 for the SF-36, 67 for the EQ-5D, 79 for the QWB-SA, 80 for the VFQ-25, 100 for the HUI, HALex, and the MLHFQ.All seven surveys have a substantial number of items with high readability levels that may not be appropriate for the general population.

View Article: PubMed Central - PubMed

Affiliation: Department of Health Services, UCLA School of Public Health, Los Angeles, CA 90095-1772, USA. shpaz@ucla.edu

ABSTRACT

Purpose: To estimate readability of seven commonly used health-related quality of life instruments: SF-36, HUI, EQ-5D, QWB-SA, HALex, Minnesota Living with Heart Failure Questionnaire (MLHFQ), and the NEI-VFQ-25.

Methods: The Flesch-Kincaid (F-K) and Flesch Reading Ease (FRE) formulae were used to estimate readability for every item in each measure.

Results: The percentage of items that require more than 5 years of formal schooling according to F-K was 50 for the EQ-5D, 53 for the SF-36, 80 for the VFQ-25, 85 for the QWB-SA, 100 for the HUI, HALex, and the MLHFQ. The percentage of items deemed harder than "easy" according to FRE was 50 for the SF-36, 67 for the EQ-5D, 79 for the QWB-SA, 80 for the VFQ-25, 100 for the HUI, HALex, and the MLHFQ.

Conclusions: All seven surveys have a substantial number of items with high readability levels that may not be appropriate for the general population.

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Related in: MedlinePlus

VFQ-25*
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Related In: Results  -  Collection


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Fig8: VFQ-25*

Mentions: Some questions have several response choices that are usually included as part of the question, or as a second phrase in the same question. This latter situation usually occurs when the survey is administered by an interviewer. This makes each item longer and usually presents a higher readability score. As an example of this situation, items in the VFQ were scored using both methods. First each question alone was scored and then a second score was obtained for the question including response choices. Both scores are graphically presented in Fig. 8.


Readability estimates for commonly used health-related quality of life surveys.

Paz SH, Liu H, Fongwa MN, Morales LS, Hays RD - Qual Life Res (2009)

VFQ-25*
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC2724639&req=5

Fig8: VFQ-25*
Mentions: Some questions have several response choices that are usually included as part of the question, or as a second phrase in the same question. This latter situation usually occurs when the survey is administered by an interviewer. This makes each item longer and usually presents a higher readability score. As an example of this situation, items in the VFQ were scored using both methods. First each question alone was scored and then a second score was obtained for the question including response choices. Both scores are graphically presented in Fig. 8.

Bottom Line: The percentage of items that require more than 5 years of formal schooling according to F-K was 50 for the EQ-5D, 53 for the SF-36, 80 for the VFQ-25, 85 for the QWB-SA, 100 for the HUI, HALex, and the MLHFQ.The percentage of items deemed harder than "easy" according to FRE was 50 for the SF-36, 67 for the EQ-5D, 79 for the QWB-SA, 80 for the VFQ-25, 100 for the HUI, HALex, and the MLHFQ.All seven surveys have a substantial number of items with high readability levels that may not be appropriate for the general population.

View Article: PubMed Central - PubMed

Affiliation: Department of Health Services, UCLA School of Public Health, Los Angeles, CA 90095-1772, USA. shpaz@ucla.edu

ABSTRACT

Purpose: To estimate readability of seven commonly used health-related quality of life instruments: SF-36, HUI, EQ-5D, QWB-SA, HALex, Minnesota Living with Heart Failure Questionnaire (MLHFQ), and the NEI-VFQ-25.

Methods: The Flesch-Kincaid (F-K) and Flesch Reading Ease (FRE) formulae were used to estimate readability for every item in each measure.

Results: The percentage of items that require more than 5 years of formal schooling according to F-K was 50 for the EQ-5D, 53 for the SF-36, 80 for the VFQ-25, 85 for the QWB-SA, 100 for the HUI, HALex, and the MLHFQ. The percentage of items deemed harder than "easy" according to FRE was 50 for the SF-36, 67 for the EQ-5D, 79 for the QWB-SA, 80 for the VFQ-25, 100 for the HUI, HALex, and the MLHFQ.

Conclusions: All seven surveys have a substantial number of items with high readability levels that may not be appropriate for the general population.

Show MeSH
Related in: MedlinePlus