Výsledky vyhledávání - "Thompson, David M."

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Choosing statistical models to assess biological interaction as a departure from additivity of effects

Autor: Thompson, David M., Zhao, Yan Daniel

Vanderweele and Knol define biological interaction as an instance wherein "two exposures physically interact to bring about the outcome." A hallmark of biological interaction is that the total effect, produced when factors act together, differs from

Externí odkaz: http://arxiv.org/abs/2301.03349

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The hazard ratio is interpretable as an odds or a probability under the assumption of proportional hazards

Autor: Thompson, David M., Reid, Julia E.

Three statistical studies, all published between 2004 and 2008 but without referring to one another, assert a useful equivalence involving the hazard ratio, a parameter estimated for time to event data by the frequently used proportional hazards mode

Externí odkaz: http://arxiv.org/abs/2109.12207

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Power and sample size for cluster randomized and stepped wedge trials: Comparing estimates obtained by applying design effects or by direct estimation in GLMM

Autor: Thompson, David M.

When observations are independent, formulae and software are readily available to plan and design studies of appropriate size and power to detect important associations. When observations are correlated or clustered, results obtained from the standar

Externí odkaz: http://arxiv.org/abs/2009.05171

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