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Frank Hsieh

Researcher at United States Department of Veterans Affairs

Publications -  16
Citations -  2479

Frank Hsieh is an academic researcher from United States Department of Veterans Affairs. The author has contributed to research in topics: Veterans Affairs & Randomized controlled trial. The author has an hindex of 11, co-authored 13 publications receiving 2334 citations. Previous affiliations of Frank Hsieh include Veterans Health Administration.

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A Controlled Trial of Inpatient and Outpatient Geriatric Evaluation and Management

TL;DR: In this controlled trial, care provided in inpatient geriatric units and outpatient geriatric clinics had no significant effects on survival and there were significant reductions in functional decline and improvements in mental health with outpatient Geriatric evaluation and management, with no increase in costs.
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Sample-size calculations for the Cox proportional hazards regression model with nonbinary covariates.

TL;DR: A formula to calculate the number of deaths required for a proportional hazards regression model with a nonbinary covariate is derived and a variance inflation factor is provided together with simulations for adjustment of sample size when additional covariates are included in the model.
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Utility of Psychophysiological Measurement in the Diagnosis of Posttraumatic Stress Disorder: Results From a Department of Veterans Affairs Cooperative Study

TL;DR: Follow-up analyses indicate that veterans with current PTSD who do not react physiologically to the challenge task manifest less reexperiencing symptoms, depression, and guilt.