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  • Title: Baseline risk factors for the development of primary open-angle glaucoma in the Ocular Hypertension Treatment Study.
    Author: Coleman AL, Gordon MO, Beiser JA, Kass MA, Ocular Hypertension Treatment Study.
    Journal: Am J Ophthalmol; 2004 Oct; 138(4):684-5. PubMed ID: 15488816.
    Abstract:
    PURPOSE: Higher baseline pattern standard deviation (PSD) and larger vertical cup-to-disk ratio (VC/D) were factors in the predictive model for the development of primary open-angle glaucoma (POAG) in the Ocular Hypertension Treatment Study. Because early changes in PSD and VC/D may be indicative of early POAG damage, we repeated the prediction model excluding PSD and VC/D. DESIGN: Reanalysis of baseline factors for the development of POAG. METHODS: We compared the hazard ratios for baseline factors predictive of POAG in the multivariate Cox proportional hazards model that included PSD and VC/D and in the model that excluded them. RESULTS: Hazard ratios for baseline factors predictive of POAG in Ocular Hypertension Treatment Study were not substantially affected by the inclusion or exclusion of PSD and VC/D in the proportional hazards model. CONCLUSION: Whether PSD or VC/D was included in the Cox proportional hazards model, the same baseline factors were statistically significant and their hazard ratios were essentially similar.
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