JSM 2011 Online Program

The views expressed here are those of the individual authors and not necessarily those of the JSM sponsors, their officers, or their staff.

Abstract Details

Activity Number: 190
Type: Contributed
Date/Time: Monday, August 1, 2011 : 10:30 AM to 12:20 PM
Sponsor: Section on Statistics in Epidemiology
Abstract - #301446
Title: Estimating the Effect of Cluster-Level Adherence on an Individual Binary Outcome with a Complex Sampling Design
Author(s): Zhulin He*+ and Babette Brumback and Richard Rheingans and Matthew Freeman and Leslie Greene and Leslie Greene and Leslie Greene
Companies: University of Florida and University of Florida and University of Florida and Emory University and Emory University and Emory University and Emory University
Address: Department of Biostatistics, Gainesville, FL, 32610,
Keywords: structural nested models ; complex sampling design ; instrumental variables ; estimating equations ; unmeasured confounding ; global health

We wish to estimate the effect of school-level adherence on individual absenteeism in the context of a school-based water, sanitation, and hygiene intervention in Western Kenya. Schools within strata were disproportionately sampled and randomized to one of three interventions. Next, students within schools were disproportionately sampled and measured for outcomes such as absenteeism. We use double inverse-probability weighting to adjust for the disproportionate sampling and the association of individual-level confounders with randomization. We develop and apply methods based on structural nested models to estimate effects of adherence assessed in terms of relative risks, using school-level randomization as an instrumental variable and using the double weights to adjust for complex sampling and individual-level confounding.

The address information is for the authors that have a + after their name.
Authors who are presenting talks have a * after their name.

Back to the full JSM 2011 program

2011 JSM Online Program Home

For information, contact jsm@amstat.org or phone (888) 231-3473.

If you have questions about the Continuing Education program, please contact the Education Department.