Publications by authors named "Sameer V Kotak"

Background: Despite recent advancements in migraine treatment, some patients continue to endure significant disease burden. Due to the controlled nature of randomized trials in migraine prevention, many real-world patients with comorbidities or prior exposure to certain therapies are excluded. Capturing evidence of the effectiveness of treatment in real-world clinical settings can further shape treatment paradigms.

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Purpose: To characterize the costs of caring for patients with open-angle glaucoma (OAG) in the United States over time and to identify factors that influence these costs.

Design: Longitudinal cohort study.

Methods: Claims data from 19 927 newly diagnosed OAG patients enrolled in a large United States managed care network were reviewed to identify glaucoma-related charges for all incident OAG patients from 2001 through 2009.

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Purpose: To create and validate a statistical model predicting progression of primary open-angle glaucoma (POAG) assessed by loss of visual field as measured in mean deviation (MD) using 3 landmark studies of glaucoma progression and treatment.

Design: A Markov decision analytic model using patient level data described longitudinal MD changes over 7 years.

Participants: Patient-level data from the Collaborative Initial Glaucoma Treatment Study (n = 607), the Ocular Hypertension Treatment Study (OHTS; n = 148; only those who developed POAG in the first 5 years of OHTS) and Advanced Glaucoma Intervention Study (n = 591), the COA model.

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Objective: To examine resource consumption and the direct costs of treating glaucoma at different disease severity levels.

Design: Observational, retrospective cohort study based on medical record review.

Participants: One hundred fifty-one records of patients with primary open-angle or normal-tension glaucoma, glaucoma suspect, or ocular hypertension (age > or =18 years) were randomly selected from 12 sites in the United States and stratified according to severity based on International Classification of Diseases, Ninth Revision, Clinical Modification codes.

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