Optimal design for epidemiological studies subject to designed missingness

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Detalles Bibliográficos
Publicado en:Lifetime Data Analysis vol. 13, no. 4 (Dec 2007), p. 583-605
Autor principal: Morara, Michele
Otros Autores: Ryan, Louise, Houseman, Andres, Strauss, Warren
Publicado:
Springer Nature B.V.
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Acceso en línea:Citation/Abstract
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Resumen:In large epidemiological studies, budgetary or logistical constraints will typically preclude study investigators from measuring all exposures, covariates and outcomes of interest on all study subjects. We develop a flexible theoretical framework that incorporates a number of familiar designs such as case control and cohort studies, as well as multistage sampling designs. Our framework also allows for designed missingness and includes the option for outcome dependent designs. Our formulation is based on maximum likelihood and generalizes well known results for inference with missing data to the multistage setting. A variety of techniques are applied to streamline the computation of the Hessian matrix for these designs, facilitating the development of an efficient software tool to implement a wide variety of designs. [PUBLICATION ABSTRACT]   In large epidemiological studies, budgetary or logistical constraints will typically preclude study investigators from measuring all exposures, covariates and outcomes of interest on all study subjects. We develop a flexible theoretical framework that incorporates a number of familiar designs such as case control and cohort studies, as well as multistage sampling designs. Our framework also allows for designed missingness and includes the option for outcome dependent designs. Our formulation is based on maximum likelihood and generalizes well known results for inference with missing data to the multistage setting. A variety of techniques are applied to streamline the computation of the Hessian matrix for these designs, facilitating the development of an efficient software tool to implement a wide variety of designs.
ISSN:1380-7870
1572-9249
DOI:10.1007/s10985-007-9068-7
Fuente:ABI/INFORM Global