Skip to main content
Top
Gepubliceerd in: Quality of Life Research 4/2016

01-04-2016

Assessment of the psychometric properties of the Chinese Impact of Vision Impairment questionnaire in a population-based study: findings from the Singapore Chinese Eye Study

Auteurs: Eva K. Fenwick, Peng Guan Ong, Charumathi Sabanayagam, Gwyn Rees, Jing Xie, Edith Holloway, Ching-Yu Cheng, Tien Y. Wong, Blanche Lim, Pok Chien Tan, Ecosse L. Lamoureux

Gepubliceerd in: Quality of Life Research | Uitgave 4/2016

Log in om toegang te krijgen
share
DELEN

Deel dit onderdeel of sectie (kopieer de link)

  • Optie A:
    Klik op de rechtermuisknop op de link en selecteer de optie “linkadres kopiëren”
  • Optie B:
    Deel de link per e-mail

Abstract

Purpose

We investigated whether the Chinese impact of vision impairment (IVI) questionnaire is valid to generate reliable person estimates in a population-based sample.

Methods

VRQoL was measured using the 32-item Chinese version of the IVI questionnaire in the Singapore Chinese Eye Study (2009–2011), a population-based study of the prevalence and risk factors for VI and eye diseases in Chinese Singaporeans. Rasch analysis was used to assess the Chinese IVI’s response category functioning, precision, unidimensionality, targeting and differential item functioning. The ability of the Chinese IVI to discriminate participants along the spectrum of VI demonstrated criterion validity.

Results

Of the 3353 participants, 27.2 % (n = 912) had VI (presenting visual acuity <6/12, better eye). Response categories were collapsed from six to four to resolve disordered thresholds. The Chinese IVI initially demonstrated multidimensionality and was split into three scales: ‘Reading and Accessing Information’; ‘Mobility and Independence’; and ‘Emotional Well-being’. All three scales were unidimensional and demonstrated excellent range-based precision (all reliability coefficients 0.97), following removal of three misfitting items. Mean person measures decreased with worsening VI (e.g. Reading: none (7.50 logits); mild (6.99 logits); moderate (6.44 logits); and severe (3.01 logits) VI; p < 0.001).

Conclusions

A three-dimensional 29-item Chinese IVI is a valid tool to assess the impact of VI on VRQoL in a large population-based sample, comprising over a quarter of participants with VI. The 28-item English IVI is also likely to be valid for use in population-based studies; however, this must be demonstrated empirically in future studies.
Bijlagen
Alleen toegankelijk voor geautoriseerde gebruikers
Literatuur
1.
go back to reference Wong, T., et al. (2014). Prevalence and causes of vision loss in East Asia: 1990–2010. British Journal of Ophthalmology, 98(5), 599–604.CrossRefPubMed Wong, T., et al. (2014). Prevalence and causes of vision loss in East Asia: 1990–2010. British Journal of Ophthalmology, 98(5), 599–604.CrossRefPubMed
2.
go back to reference Pesudovs, K. (2006). Patient-centred measurement in ophthalmology—A paradigm shift. BMC Ophthalmology. 6. Pesudovs, K. (2006). Patient-centred measurement in ophthalmology—A paradigm shift. BMC Ophthalmology. 6.
3.
go back to reference U.S. Department of Health and Human Services FDA Center for Drug Evaluation and Research, U.S. Department of Health and Human Services FDA Center for Biologics Evaluation and Research, and U.S. Department of Health and Human Services FDA Center for Devices and Radiological Health. (2006). Guidance for industry: Patient-reported outcome measures: Use in medical product development to support labeling claims: Draft guidance. Health Quality Life Outcomes, 4, 79.CrossRef U.S. Department of Health and Human Services FDA Center for Drug Evaluation and Research, U.S. Department of Health and Human Services FDA Center for Biologics Evaluation and Research, and U.S. Department of Health and Human Services FDA Center for Devices and Radiological Health. (2006). Guidance for industry: Patient-reported outcome measures: Use in medical product development to support labeling claims: Draft guidance. Health Quality Life Outcomes, 4, 79.CrossRef
4.
go back to reference Lamoureux, E., et al. (2008). Vision impairment, ocular conditions, and vision-specific function: The Singapore Malay Eye Study. Ophthalmoloy, 115(11), 1973–1981.CrossRef Lamoureux, E., et al. (2008). Vision impairment, ocular conditions, and vision-specific function: The Singapore Malay Eye Study. Ophthalmoloy, 115(11), 1973–1981.CrossRef
5.
go back to reference Chiang, P., et al. (2013). Vision impairment and major causes of vision loss impacts on vision-specific functioning independent of socioeconomic factors. Ophthalmoloy, 120(2), 415–422.CrossRef Chiang, P., et al. (2013). Vision impairment and major causes of vision loss impacts on vision-specific functioning independent of socioeconomic factors. Ophthalmoloy, 120(2), 415–422.CrossRef
6.
go back to reference Fenwick, E., et al. (2012). Social and emotional impact of diabetic retinopathy: A review. Clinical and Experimental Ophthalmology, 40(1), 27–38.CrossRefPubMed Fenwick, E., et al. (2012). Social and emotional impact of diabetic retinopathy: A review. Clinical and Experimental Ophthalmology, 40(1), 27–38.CrossRefPubMed
7.
go back to reference Rovner, B., & Ganguli, M. (1998). Depression and disability associated with impaired vision: The MoVies Project. Journal of the American Geriatrics Society, 46(5), 617–619.CrossRefPubMed Rovner, B., & Ganguli, M. (1998). Depression and disability associated with impaired vision: The MoVies Project. Journal of the American Geriatrics Society, 46(5), 617–619.CrossRefPubMed
8.
go back to reference Rees, G., et al. (2010). Vision-specific distress and depressive symptoms in people with vision impairment. Investigative Ophthalmology and Visual Science, 51(6), 2891–2896.CrossRefPubMed Rees, G., et al. (2010). Vision-specific distress and depressive symptoms in people with vision impairment. Investigative Ophthalmology and Visual Science, 51(6), 2891–2896.CrossRefPubMed
9.
go back to reference Weih, L. M., Hassell, J. B., & Keeffe, J. (2002). Assessment of the impact of vision impairment. Investigative Ophthalmology and Visual Science, 43(4), 927–935.PubMed Weih, L. M., Hassell, J. B., & Keeffe, J. (2002). Assessment of the impact of vision impairment. Investigative Ophthalmology and Visual Science, 43(4), 927–935.PubMed
10.
go back to reference Lamoureux, E. L., et al. (2006). The impact of vision impairment questionnaire: An evaluation of its measurement properties using Rasch analysis. Investigative Ophthalmology and Visual Science, 47(11), 4732–4741.CrossRefPubMed Lamoureux, E. L., et al. (2006). The impact of vision impairment questionnaire: An evaluation of its measurement properties using Rasch analysis. Investigative Ophthalmology and Visual Science, 47(11), 4732–4741.CrossRefPubMed
11.
go back to reference Lamoureux, E. L., et al. (2007). The impact of vision impairment questionnaire: An assessment of its domain structure using confirmatory factor analysis and Rasch analysis. Investigative Ophthalmology and Visual Science, 48(3), 1001–1006.CrossRefPubMed Lamoureux, E. L., et al. (2007). The impact of vision impairment questionnaire: An assessment of its domain structure using confirmatory factor analysis and Rasch analysis. Investigative Ophthalmology and Visual Science, 48(3), 1001–1006.CrossRefPubMed
13.
go back to reference Rees, G., et al. (2015). A randomised controlled trial of a self-management programme for low vision implemented in low vision rehabilitation services. Patient Education and Counseling, 98(2), 174–181.CrossRefPubMed Rees, G., et al. (2015). A randomised controlled trial of a self-management programme for low vision implemented in low vision rehabilitation services. Patient Education and Counseling, 98(2), 174–181.CrossRefPubMed
14.
go back to reference Finger, R., et al. (2011). The impact of vision impairment on vision-specific quality of life in Germany. Investigative Ophthalmology and Visual Science, 52(6), 3613–3619.CrossRefPubMed Finger, R., et al. (2011). The impact of vision impairment on vision-specific quality of life in Germany. Investigative Ophthalmology and Visual Science, 52(6), 3613–3619.CrossRefPubMed
15.
go back to reference O’Connor, P. M., et al. (2010). Validation of a quality of life questionnaire in the Pacific Island. Ophthalmic Epidemiology, 17(6), 378–386.CrossRefPubMed O’Connor, P. M., et al. (2010). Validation of a quality of life questionnaire in the Pacific Island. Ophthalmic Epidemiology, 17(6), 378–386.CrossRefPubMed
16.
go back to reference Gothwal, V. K., et al. (2013). Assessment of the impact of keratoconus on vision-related quality of life. Investigative Ophthalmology and Visual Science, 54(4), 2902–2910.CrossRefPubMed Gothwal, V. K., et al. (2013). Assessment of the impact of keratoconus on vision-related quality of life. Investigative Ophthalmology and Visual Science, 54(4), 2902–2910.CrossRefPubMed
17.
18.
go back to reference Wong, T. Y., & Hyman, L. (2008). Population-based studies in ophthalmology. American Journal of Ophthalmology, 146(5), 656–663.CrossRefPubMed Wong, T. Y., & Hyman, L. (2008). Population-based studies in ophthalmology. American Journal of Ophthalmology, 146(5), 656–663.CrossRefPubMed
19.
go back to reference Centers for Disease Control and Prevention. (2000). Measuring healthy days: Population assessment of health-related quality of life. Atlanta, Georgia: CDC. Centers for Disease Control and Prevention. (2000). Measuring healthy days: Population assessment of health-related quality of life. Atlanta, Georgia: CDC.
20.
go back to reference Varni, J. W., & Burwinkle, T. M. (2006). The PedsQL as a patient-reported outcome in children and adolescents with Attention-Deficit/Hyperactivity Disorder: A population-based study. Health Qual Life Outcomes, 4, 26.CrossRefPubMedPubMedCentral Varni, J. W., & Burwinkle, T. M. (2006). The PedsQL as a patient-reported outcome in children and adolescents with Attention-Deficit/Hyperactivity Disorder: A population-based study. Health Qual Life Outcomes, 4, 26.CrossRefPubMedPubMedCentral
21.
go back to reference Wright, B. (2001). Separation, reliability and skewed distributions: Statistically different levels of performance. Rasch Measurment Transactions, 14(4), 786. Wright, B. (2001). Separation, reliability and skewed distributions: Statistically different levels of performance. Rasch Measurment Transactions, 14(4), 786.
22.
go back to reference Lavanya, R., et al. (2009). Methodology of the Singapore Indian Chinese Cohort (SICC) eye study: Quantifying ethnic variations in the epidemiology of eye diseases in Asians. Ophthalmic Epidemiology, 16(6), 325–336.CrossRefPubMed Lavanya, R., et al. (2009). Methodology of the Singapore Indian Chinese Cohort (SICC) eye study: Quantifying ethnic variations in the epidemiology of eye diseases in Asians. Ophthalmic Epidemiology, 16(6), 325–336.CrossRefPubMed
23.
go back to reference Tham, Y. C., et al. (2013). Relationship between retinal vascular geometry with retinal nerve fiber layer and ganglion cell-inner plexiform layer in nonglaucomatous eyes. Investigative Ophthalmology and Visual Science, 54(12), 7309–7316.CrossRefPubMed Tham, Y. C., et al. (2013). Relationship between retinal vascular geometry with retinal nerve fiber layer and ganglion cell-inner plexiform layer in nonglaucomatous eyes. Investigative Ophthalmology and Visual Science, 54(12), 7309–7316.CrossRefPubMed
24.
go back to reference Cheng, C. Y., et al. (2015). Association of common SIX6 polymorphisms with peripapillary retinal nerve fiber layer thickness: The Singapore Chinese Eye study. Investigative Ophthalmology and Visual Science, 56(1), 478–483.CrossRefPubMedCentral Cheng, C. Y., et al. (2015). Association of common SIX6 polymorphisms with peripapillary retinal nerve fiber layer thickness: The Singapore Chinese Eye study. Investigative Ophthalmology and Visual Science, 56(1), 478–483.CrossRefPubMedCentral
25.
go back to reference Rooney, D., et al. (2015). Body mass index and retinopathy in Asian populations with diabetes mellitus. Acta Diabetologica, 52(1), 73–80.CrossRefPubMed Rooney, D., et al. (2015). Body mass index and retinopathy in Asian populations with diabetes mellitus. Acta Diabetologica, 52(1), 73–80.CrossRefPubMed
26.
go back to reference Zheng, Y., et al. (2011). Prevalence and causes of visual impairment and blindness in an urban Indian population: The Singapore Indian Eye Study. Ophthalmology, 118(9), 1798–1804.CrossRefPubMed Zheng, Y., et al. (2011). Prevalence and causes of visual impairment and blindness in an urban Indian population: The Singapore Indian Eye Study. Ophthalmology, 118(9), 1798–1804.CrossRefPubMed
27.
go back to reference Andrich, D. (1978). Rating formulation for ordered response categories. Psychometrica, 43, 561–573.CrossRef Andrich, D. (1978). Rating formulation for ordered response categories. Psychometrica, 43, 561–573.CrossRef
28.
go back to reference Pesudovs, K., et al. (2007). The development, assessment, and selection of questionnaires. Optometry and Vision Science, 84(8), 663–674.CrossRefPubMed Pesudovs, K., et al. (2007). The development, assessment, and selection of questionnaires. Optometry and Vision Science, 84(8), 663–674.CrossRefPubMed
29.
go back to reference Thissen, D., & Orlando, M. (2001). Item response theory for items scored in two categories. In D. Thissen & H. Wainer (Eds.), Test scoring (pp. 73–140). Mahwah, NJ: Lawrence Erlbaum Associates, Inc. Thissen, D., & Orlando, M. (2001). Item response theory for items scored in two categories. In D. Thissen & H. Wainer (Eds.), Test scoring (pp. 73–140). Mahwah, NJ: Lawrence Erlbaum Associates, Inc.
30.
go back to reference Lamoureux, E., & Pesudovs, K. (2011). Vision-specific quality-of-life research: A need to improve the quality. American Journal of Ophthalmology, 151(2), 195-7 e2.CrossRefPubMed Lamoureux, E., & Pesudovs, K. (2011). Vision-specific quality-of-life research: A need to improve the quality. American Journal of Ophthalmology, 151(2), 195-7 e2.CrossRefPubMed
31.
go back to reference Bond, T. G., & Fox, C. M. (2001). Applying the Rasch model: Fundamental measurement in the human sciences. London: Lawrence Erlbaum Associates. Bond, T. G., & Fox, C. M. (2001). Applying the Rasch model: Fundamental measurement in the human sciences. London: Lawrence Erlbaum Associates.
32.
go back to reference Pesudovs, K. (2010). Item banking: A generational change in patient-reported outcome measurement. Optometry and Vision Science, 87(4), 285–293.PubMed Pesudovs, K. (2010). Item banking: A generational change in patient-reported outcome measurement. Optometry and Vision Science, 87(4), 285–293.PubMed
33.
go back to reference Linacre, J. M. (2005). A user’s guide to Winsteps/Ministeps Rasch-Model Programs. Chicago, IL: MESA Press. Linacre, J. M. (2005). A user’s guide to Winsteps/Ministeps Rasch-Model Programs. Chicago, IL: MESA Press.
34.
go back to reference Linacre, J. M. (2002). What do Infit and Outfit, mean-square and standardized mean? Rasch Measurement Transactions, 16(2), 878. Linacre, J. M. (2002). What do Infit and Outfit, mean-square and standardized mean? Rasch Measurement Transactions, 16(2), 878.
35.
go back to reference Mallinson, T. (2007). Why measurement matters for measuring patient vision outcomes. Optometry and Vision Science, 84(8), 675–682.CrossRefPubMed Mallinson, T. (2007). Why measurement matters for measuring patient vision outcomes. Optometry and Vision Science, 84(8), 675–682.CrossRefPubMed
36.
go back to reference Pesudovs, K., et al. (2003). The activities of daily vision scale for cataract surgery outcomes: Re-evaluating validity with Rasch analysis. Investigative Ophthalmology and Visual Science, 44(7), 2892–2899.CrossRefPubMed Pesudovs, K., et al. (2003). The activities of daily vision scale for cataract surgery outcomes: Re-evaluating validity with Rasch analysis. Investigative Ophthalmology and Visual Science, 44(7), 2892–2899.CrossRefPubMed
37.
go back to reference Stelmack, J. A., et al. (2004). Psychometric properties of the veterans affairs low-vision visual functioning questionnaire. Investigative Ophthalmology and Visual Science, 45(11), 3919–3928.CrossRefPubMed Stelmack, J. A., et al. (2004). Psychometric properties of the veterans affairs low-vision visual functioning questionnaire. Investigative Ophthalmology and Visual Science, 45(11), 3919–3928.CrossRefPubMed
38.
go back to reference Aggarwal, A. N., Agarwal, R., & Gupta, D. (2014). Abbreviated World Health Organization Quality of Life questionnaire (WHOQOL-Bref) in north Indian patients with bronchial asthma: An evaluation using Rasch analysis. NPJ Primary Care Respiratory Medicine, 24, 14001.CrossRefPubMedPubMedCentral Aggarwal, A. N., Agarwal, R., & Gupta, D. (2014). Abbreviated World Health Organization Quality of Life questionnaire (WHOQOL-Bref) in north Indian patients with bronchial asthma: An evaluation using Rasch analysis. NPJ Primary Care Respiratory Medicine, 24, 14001.CrossRefPubMedPubMedCentral
39.
go back to reference Amin, L., et al. (2012). Rasch analysis of the PedsQL: An increased understanding of the properties of a rating scale. Journal of Clinical Epidemiology, 65(10), 1117–1123.CrossRefPubMed Amin, L., et al. (2012). Rasch analysis of the PedsQL: An increased understanding of the properties of a rating scale. Journal of Clinical Epidemiology, 65(10), 1117–1123.CrossRefPubMed
41.
go back to reference Finger, R. P., et al. (2011). The relative impact of vision impairment and cardiovascular disease on quality of life: The example of pseudoxanthoma elasticum. Health Quality Life Outcomes, 9, 113.CrossRef Finger, R. P., et al. (2011). The relative impact of vision impairment and cardiovascular disease on quality of life: The example of pseudoxanthoma elasticum. Health Quality Life Outcomes, 9, 113.CrossRef
42.
go back to reference Fayers, P., & Hays, R. (2005). Assessing quality of life in clinical trials. Oxford: Oxford University Press. Fayers, P., & Hays, R. (2005). Assessing quality of life in clinical trials. Oxford: Oxford University Press.
Metagegevens
Titel
Assessment of the psychometric properties of the Chinese Impact of Vision Impairment questionnaire in a population-based study: findings from the Singapore Chinese Eye Study
Auteurs
Eva K. Fenwick
Peng Guan Ong
Charumathi Sabanayagam
Gwyn Rees
Jing Xie
Edith Holloway
Ching-Yu Cheng
Tien Y. Wong
Blanche Lim
Pok Chien Tan
Ecosse L. Lamoureux
Publicatiedatum
01-04-2016
Uitgeverij
Springer International Publishing
Gepubliceerd in
Quality of Life Research / Uitgave 4/2016
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-015-1141-1

Andere artikelen Uitgave 4/2016

Quality of Life Research 4/2016 Naar de uitgave