Evaluation of the external validity of a joint structure–function model for monitoring glaucoma progression
Autor: | Mahmoud Tawfik KhalafAllah, Lyne Racette, Sampson Listowell Abu |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Male
Wilcoxon signed-rank test genetic structures Ocular hypertension Glaucoma lcsh:Medicine Diseases Article External validity 03 medical and health sciences 0302 clinical medicine Linear regression Statistics medicine Humans Least-Squares Analysis lcsh:Science Eye diseases Mathematics Paired Data Multidisciplinary lcsh:R Middle Aged Models Theoretical medicine.disease Scanning laser ophthalmoscopy Ophthalmoscopy Ordinary least squares Optic nerve diseases Disease Progression 030221 ophthalmology & optometry Female lcsh:Q Tomography Optical Coherence 030217 neurology & neurosurgery |
Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020) Scientific Reports |
ISSN: | 2045-2322 |
Popis: | The dynamic structure–function (DSF) model was previously shown to have better prediction accuracy than ordinary least square linear regression (OLSLR) for short series of visits. The current study assessed the external validity of the DSF model by testing its performance in an independent dataset (Ocular Hypertension Treatment Study–Confocal Scanning Laser Ophthalmoscopy [OHTS–CSLO] ancillary study; N = 178 eyes), and also on different test parameters in a sample selected from the Diagnostic Innovations in Glaucoma Study or the African Descent and Glaucoma Evaluation Study (DIGS/ADAGES). Each model was used to predict structure–function paired data at visits 4–7. The resulting prediction errors for both models were compared using the Wilcoxon signed-rank test. In the independent dataset, the DSF model predicted rim area and mean sensitivity paired measurements more accurately than OLSLR by 1.8–5.5% (p ≤ 0.004) from visits 4–6. Using the DIGS/ADAGES dataset, the DSF model predicted retinal nerve fiber layer thickness and mean deviation paired measurements more accurately than OLSLR by 1.2–2.5% (p ≤ 0. 007). These results demonstrate the external validity of the DSF model and provide a strong basis to develop it into a useful clinical tool. |
Databáze: | OpenAIRE |
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