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The Italian Catquest-9SF cataract questionnaire: translation, validation and application

Overview of attention for article published in Eye and Vision, April 2016
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Title
The Italian Catquest-9SF cataract questionnaire: translation, validation and application
Published in
Eye and Vision, April 2016
DOI 10.1186/s40662-016-0043-9
Pubmed ID
Authors

Eirini Skiadaresi, Giuseppe Ravalico, Silvio Polizzi, Mats Lundström, Miguel González-Andrades, Colm McAlinden

Abstract

To validate the Catquest-9SF questionnaire in Italian, assess the change in visual disability with cataract surgery and determine the correlation between pre-operative Catquest-9SF scores and Lens Opacities Classification System (LOCS) III cataract grading. Prospective, questionnaire validation study. The Catquest-9SF questionnaire was forward and back translated and completed by 209 Italian patients before and three months following cataract surgery. Rasch analysis was used to assess its psychometric properties. The Italian Catquest-9SF demonstrated ordered response categories, unidimensionality (item fit statistics range: 0.73-1.34), adequate person separation (2.04), and no differential item functioning. Mistargeting was evident with a mean difference in item difficulty and person ability of 2.04 logits but improved with inclusion of pre-operative data only. There was a statistically significant (Friedman tests, p < 0.001) median improvement in visual disability of 1.92, 3.57, 1.44 and 2.94 logits in patients undergoing first eye surgery with and without ocular comorbidity, and second eye surgery with and without ocular comorbidity respectively. There was no statistically significant difference in the improvements among the four groups (Kruskal-Wallis H test, X (2) (3) = 5.445, p = 0.142). There was no correlation between Catquest-9SF scores and nuclear opalescence (r s = 0.049, p = 0.478), nuclear colour (r s = 0.008, p = 0.909), cortical (r s = 0.066, p = 0.341), and posterior subcapsular components (r s = 0.048, p = 0.494). The Italian Catquest-9SF demonstrated good psychometric properties and is suitable for use in Italian speaking patients. There were similar improvements in visual disability in patients undergoing first or second eye surgery, with or without ocular comorbidity. There was no correlation between pre-operative Catquest-9SF scores and LOCS III cataract grading.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 33 100%

Demographic breakdown

Readers by professional status Count As %
Student > Postgraduate 5 15%
Researcher 4 12%
Student > Doctoral Student 2 6%
Professor 2 6%
Student > Ph. D. Student 2 6%
Other 5 15%
Unknown 13 39%
Readers by discipline Count As %
Medicine and Dentistry 9 27%
Nursing and Health Professions 5 15%
Biochemistry, Genetics and Molecular Biology 1 3%
Computer Science 1 3%
Mathematics 1 3%
Other 2 6%
Unknown 14 42%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 30 April 2016.
All research outputs
#20,655,488
of 25,371,288 outputs
Outputs from Eye and Vision
#110
of 282 outputs
Outputs of similar age
#232,745
of 312,657 outputs
Outputs of similar age from Eye and Vision
#4
of 4 outputs
Altmetric has tracked 25,371,288 research outputs across all sources so far. This one is in the 10th percentile – i.e., 10% of other outputs scored the same or lower than it.
So far Altmetric has tracked 282 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.2. This one has gotten more attention than average, scoring higher than 53% of its peers.
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