Validation and application of Catquest-9SF in various populations: A systematic review

Kabanovski, Anna; Hatch, Wendy; Chaudhary, Varun; El‐Defrawy, Sherif; Reid, Robert J.; Ahmed, Iqbal Ike K.; Schlenker, Matthew B.

doi:10.1016/j.survophthal.2019.12.002

Cited by 22 publications

(24 citation statements)

References 59 publications

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“…The results of this study are similar to results of previous Catquest-9SF validation studies in other populations. Previous reports showed that Catquest-9SF had ordered response thresholds, unidimensionality confirmed by principal components analysis, and acceptable precision based on person separation index and person reliability [30]. Infit/outfit range was within 0.50-1.50 for these studies (except for two studies which had up to two misfitting items) [22,26].…”

Section: Plos Onementioning

confidence: 55%

“…IRT methodology, specifically Rasch analysis, was the chosen approach for validation of Catquest-9SF. In addition to considering the advantages of the approach as described above, we chose this route because Catquest-9SF was developed and previously validated in 11 countries using the Rasch analysis [30]. Therefore, using the same technique will allow us to ensure comparability with previous studies and maintain standardized methods of analysis for this questionnaire, and position us to consider CAT approaches in the future.…”

Section: Rasch Analysismentioning

confidence: 99%

“…The survey is short, easy to use, and cost-effective to administer, making it a practical tool to implement in daily clinical practice. First validated in Sweden, the Catquest-9SF has been translated, culturally adapted, and validated in Australia, Austria, China, Denmark, England, Germany, Italy, Malaysia, the Netherlands, and Spain [11,[18][19][20][21][22][23][24][25][26][27][28][29][30]. The Catquest-9SF has been shown to be a reliable instrument for measuring visual function and is highly responsive to cataract surgery outcomes in multiple languages [30].…”

Section: Introductionmentioning

confidence: 99%

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Catquest-9SF questionnaire and eCAPS: Validation in a Canadian population

et al. 2020

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Background Visual acuity alone has limitations in assessing a patient's appropriateness and prioritization for cataract surgery. Several tools, including the Catquest-9SF questionnaire and the electronic cataract appropriateness and priority system (eCAPS) have been developed to evaluate patients-reported visual function as related to day-today tasks. The aim of this study was to validate Catquest-9SF and eCAPS in a Canadian population and propose a shorter version of each, in an attempt to extend their applicability in clinical practice. Methods The English translation of the Swedish Catquest-9SF and eCAPS were self-administered separately in pre-operative patients in tertiary care in Peel region, Ontario. Rasch analysis was used to validate both scales and assess their psychometric properties, such as category threshold order, item fit, unidimensionality, precision, targeting, and differential item functioning. Results A total of 313 cataract patients (mean age = 69.1, 56.5% female) completed the Catquest-9SF and eCAPS. Catquest-9SF had ordered response thresholds, adequate precision (person separation index = 2.09, person reliability = 0.81), unidimensionality and no misfits (infit range 0.75-1.35, outfit range 0.83-1.36). There mean for patients was equal to-1.43 (lower than the mean for items which is set automatically at zero), meaning that tasks were relatively easy for respondent ability. eCAPS had 3 items that misfit the Rasch model and were excluded (infit range 0.82-1.30, outfit range 0.75-1.36). Precision was inadequate (person separation index = 0.19, person reliability = 0.04). 78.8% of subjects scored�9 (answered that they had no issues for most questions).

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Section: Plos Onementioning

confidence: 55%

Section: Rasch Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Catquest-9SF questionnaire and eCAPS: Validation in a Canadian population

et al. 2020

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“…Capio Medocular, Lund, Sweden. 5 Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden. 6 University of New South Wales, Adelaide, SA, Australia.…”

Section: Fundingmentioning

confidence: 99%

“…Catquest-9SF is a Rasch scaled 9-item questionnaire measuring activity limitations in daily life due to poor vision because of cataract and is used by the NCR because of its documented responsiveness in cataract surgery [3,4]. It has been translated to many languages and validated through Rasch analysis [5] and is recommended by the International Consortium of Health Outcomes Measurement [6] and the European Registry of Quality Outcomes for Cataract and Refractive Surgery [7].…”

Section: Introductionmentioning

confidence: 99%

Catquest-9SF functioning over a decade – a study from the Swedish National Cataract Register

et al. 2020

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Background The Swedish National Cataract Register (NCR) collects data on cataract surgery outcomes during March, including patient-reported outcomes using the Catquest-9SF questionnaire for over 11 years. Previous studies from NCR have shown that the preoperative visual acuity has improved over time. The main purpose of this study was to evaluate the Catquest-9SF Rasch scoring performance in this changing environment. A second purpose was to describe clinical data over the same period for those who completed the questionnaire. Methods The performance of the Catquest-9SF was analysed by a separate Rasch analysis for each year, resulting in a preoperative and postoperative score for each participating patient in the annual cohorts. The clinical data and questionnaire scoring were analysed for each year in the period 2008–2018 inclusive. Results Data were available for 42,023 eyes for 11 annual cohorts (2008–2018). The psychometric properties of the questionnaire were stable during the study period. Person separation (precision) for the whole period was 2.58 and varied between 2.45 and 2.72. The person reliability was 0.87 and varied between 0.86 and 0.88. The targeting of question difficulty to person ability became less accurate over time meaning that the item activities became easier to carry out without difficulty. The average targeting for the whole period was −2.06 and changed from −1.92 in 2008 to −2.31 in 2018. The person score improved both before surgery and after surgery, indicating that patients are undergoing surgery at a more able level and getting better outcomes. The average improvement by surgery decreased from 3.41 logits in 2008 to 3.21 logits in 2018 (p = 0.003). Over time, patient age decreased from 75 to 74 years (p < 0.001) and the proportion of women decreased from 63.9 to 57.9% (p < 0.001). The mean preoperative visual acuity in both the operated eye and the better eye improved over time (0.47 to 0.40 logMAR, p < 0.001 and 0.22 to 0.19 logMAR, p < 0.001, respectively), as did the mean postoperative visual acuity in the operated eye (0.14 to 0.09 logMAR, p < 0.001). Conclusions The Catquest-9SF retained stable psychometric properties over this 11-year period although more recent cohorts included slightly younger patients with somewhat better vision.

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Visual outcomes and patient satisfaction after bilateral implantation of an enhanced monofocal intraocular lens: a single-masked prospective randomized study

Giglio,

Vinciguerra,

Presotto

et al. 2024

Int Ophthalmol

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Purpose To evaluate and compare the visual outcomes of an enhanced monofocal intraocular lens (IOL) with two different monofocal IOLs. Setting Eye Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy. Design Prospective, single-center, single-masked, randomized controlled clinical study. Methods The study included patients undergoing phacoemulsification and IOL implantation. Patients were consecutively randomized by block randomization and assigned in a 1:1:1 allocation ratio to three study arms to bilaterally receive Tecnis Eyhance™ (model ICB00) or Tecnis® monofocal 1-piece (model PCB00) or Clareon® monofocal (model CNA0T0), respectively. Monocular and binocular (both corrected and uncorrected) visual acuities for far, intermediate and near were registered and compared among groups at 3 months. To track changes in patient quality of life, the Catquest-9SF questionnaire was administered to each patient before and after cataract extraction. Results Ninety patients (30 for each group) were enrolled. At 3 months follow-up, statistically significant differences for intermediate visual acuities were found between the three groups. Nonstatistically significant differences were observed for distance visual acuities and the changes in Catquest-9SF scores. Conclusion Tecnis Eyhance™ provided better results in intermediate visual outcomes without adverse effects on patients’ quality of life.

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Validation and application of Catquest-9SF in various populations: A systematic review

Cited by 22 publications

References 59 publications

Catquest-9SF questionnaire and eCAPS: Validation in a Canadian population

Catquest-9SF questionnaire and eCAPS: Validation in a Canadian population

Catquest-9SF functioning over a decade – a study from the Swedish National Cataract Register

Visual outcomes and patient satisfaction after bilateral implantation of an enhanced monofocal intraocular lens: a single-masked prospective randomized study

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