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1 General aspects (0)   1.1 Epidemiology (6)   1.2 Population genetics (0)   1.3 Pathogenesis (2)   1.4 Quality of life (19)   1.5 Glaucomas as cause of blindness (10)   1.6 Prevention and screening (10) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (8)   2.2 Cornea (22)   2.3 Sclera (11)   2.4 Anterior chamber angle (2)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (17)     2.5.2 Schlemms canal (2)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (2)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (7)       2.6.2.2 Uveoscleral (2)     2.6.3 Compostion (4)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (5)   2.9 Ciliary body (0)   2.10 Lens (0)   2.11 Vitreous body (1)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (3)   2.13 Retina and retinal nerve fibre layer (37)   2.14 Optic disc (46)   2.15 Optic nerve (6)   2.16 Chiasma and retrochiasmal central nervous system (5)   2.17 Stem cells (3)   2.20 Other (1) 3 Laboratory methods (0)   3.1 Microscopy (4)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (0)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (31)   3.5 Molecular biology incl. 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surgery (0)     12.8.1 Without tube implant (12)     12.8.2 With tube implant or other drainage devices (30)     12.8.3 Non-perforating (12)     12.8.4 Using laser (0)     12.8.5 Other (0)     12.8.10 Woundhealing antifibrosis (18)     12.8.11 Complications, endophthalmitis (10)   12.9 Trabeculotomy, goniotomy (5)   12.10 Cyclodestruction (1)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (1)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (6)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (3)   12.15 Capsulotomy (0)   12.16 Vitrectomy (3)   12.17 Anesthesia (1)   12.20 Other (6) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (0)   13.2 Outcome (0)     13.2.1 IOP (2)     13.2.2 Visual field (1)       13.2.2.1 Progression (0)       13.2.2.2 Improvement (0)     13.2.3 Other (2) 14 Costing studies; pharmacoeconomics (3) 15 Miscellaneous (19)

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Abstract #55300 Published in IGR 15-4

Linguistic and psychometric validation of the Chinese version of the Glaucoma Quality of Life-15 (GQL-15-CHI): a cross-sectional study

Zhou C; Yao J; Qian S; Wu P
Health and Quality of Life Outcomes 2013; 11: 188

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BACKGROUND: Maintaining glaucoma patients' quality of life (QoL) has become one of the most important goals for treatments. The purpose of this study is to develop a Chinese version of Glaucoma Quality of Life-15 item Questionnaire (GQL-15-CHI), and examine its psychometric properties. METHODS: The Glaucoma Quality of Life-15 item Questionnaire (GQL-15) was translated and culturally adapted into Chinese, and administered to glaucoma patients recruited from Shanghai Eye and ENT Hospital. Visual functions: habitual-corrected visual acuity (HCVA), intraocular pressure (IOP), and mean defect (MD) of visual field) were assessed through clinical examination by professionals. Sociodemographic and other clinical data were collected via interviews and chart review. According to Nelson's glaucoma staging system, patients were stratified as mild, moderate, and severe visual field loss (VFL). The psychometric properties, including internal consistency, test-retest reliability, item-scale correlations and factor analysis were conducted. The divergent validity was assessed through bilateral comparisons of the GQL-15-CHI composite and subscale scores between patients of different VFLs after controlling for potential confounders. RESULTS: A total of 508 glaucoma patients were recruited (male: 265, female: 243). The mean age was 55.41 years. The Cronbach's α coefficients ranged from 0.75 to 0.91 for the subscales. The test-retest reliability, as estimated by the intraclass correlation coefficients, were above 0.70 for all subscales. Statistically significant differences were showed in the GQL-15-CHI summary and subscale scores after controlling for sociodemographic and clinical confounders (P < 0.05) among patients with different VFLs. CONCLUSION: The GQL-15-CHI showed psychometric properties comparable to those of the original English version, and thus could be used as a reliable and valid tool for assessment of QoL in Chinese glaucoma patients.

Full article

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Classification:

1.4 Quality of life (Part of: 1 General aspects)

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