Epidemiologic Perspectives & Innovations

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The role of causal criteria in causal inferences: Bradford Hill's "aspects of association"
Epidemiologic Perspectives & Innovations - Tập 6 - Trang 1-22 - 2009
Andrew C Ward
As noted by Wesley Salmon and many others, causal concepts are ubiquitous in every branch of theoretical science, in the practical disciplines and in everyday life. In the theoretical and practical sciences especially, people often base claims about causal relations on applications of statistical methods to data. However, the source and type of data place important constraints on the choice of sta...... hiện toàn bộ
Using the National Health Interview Survey to understand and address the impact of tobacco in the United States: past perspectives and future considerations
Epidemiologic Perspectives & Innovations - - 2008
Cathy L. Backinger, Deirdre Lawrence, Judith Swan, Deborah M. Winn, Nancy Breen, Anne M. Hartman, Rachel Grana, David Tran, Samantha Farrell
Abstract Objective The National Health Interview Survey (NHIS) is a continuous, nationwide, household interview survey of the civilian noninstitutionalized population of the United States. This annual survey is conducted by the National Center for Health Statistics, part of the Centers for Disease C...... hiện toàn bộ
A demonstration of modeling count data with an application to physical activity
Epidemiologic Perspectives & Innovations - Tập 3 - Trang 1-9 - 2006
Donald J Slymen, Guadalupe X Ayala, Elva M Arredondo, John P Elder
Counting outcomes such as days of physical activity or servings of fruits and vegetables often have distributions that are highly skewed toward the right with a preponderance of zeros, posing analytical challenges. This paper demonstrates how such outcomes may be analyzed with several modifications to Poisson regression. Five regression models 1) Poisson, 2) overdispersed Poisson, 3) negative bino...... hiện toàn bộ
The effects of neighborhood density and street connectivity on walking behavior: the Twin Cities walking study
Epidemiologic Perspectives & Innovations - Tập 4 - Trang 1-9 - 2007
J Michael Oakes, Ann Forsyth, Kathryn H Schmitz
A growing body of health and policy research suggests residential neighborhood density and street connectivity affect walking and total physical activity, both of which are important risk factors for obesity and related chronic diseases. The authors report results from their methodologically novel Twin Cities Walking Study; a multilevel study which examined the relationship between built environme...... hiện toàn bộ
Categorisation of continuous risk factors in epidemiological publications: a survey of current practice
Epidemiologic Perspectives & Innovations - Tập 7 - Trang 1-10 - 2010
Elizabeth L Turner, Joanna E Dobson, Stuart J Pocock
Reports of observational epidemiological studies often categorise (group) continuous risk factor (exposure) variables. However, there has been little systematic assessment of how categorisation is practiced or reported in the literature and no extended guidelines for the practice have been identified. Thus, we assessed the nature of such practice in the epidemiological literature. Two months (Dece...... hiện toàn bộ
Using variable importance measures from causal inference to rank risk factors of schistosomiasis infection in a rural setting in China
Epidemiologic Perspectives & Innovations - Tập 7 - Trang 1-10 - 2010
Sylvia EK Sudat, Elizabeth J Carlton, Edmund YW Seto, Robert C Spear, Alan E Hubbard
Schistosomiasis infection, contracted through contact with contaminated water, is a global public health concern. In this paper we analyze data from a retrospective study reporting water contact and schistosomiasis infection status among 1011 individuals in rural China. We present semi-parametric methods for identifying risk factors through a comparison of three analysis approaches: a prediction-f...... hiện toàn bộ
Warning: Anti-tobacco activism may be hazardous to epidemiologic science
Epidemiologic Perspectives & Innovations - - 2007
Carl Phillips
AbstractThis commentary accompanies two articles submitted to Epidemiologic Perspectives & Innovations in response to a call for papers about threats to epidemiology or epidemiologists from organized political interests. Contrary to our expectations, we received no submissions that described threats from industry or government; all we...... hiện toàn bộ
Case-cohort design in practice – experiences from the MORGAM Project
Epidemiologic Perspectives & Innovations - Tập 4 - Trang 1-17 - 2007
Sangita Kulathinal, Juha Karvanen, Olli Saarela, Kari Kuulasmaa
When carefully planned and analysed, the case-cohort design is a powerful choice for follow-up studies with multiple event types of interest. While the literature is rich with analysis methods for case-cohort data, little is written about the designing of a case-cohort study. Our experiences in designing, coordinating and analysing the MORGAM case-cohort study are potentially useful for other stud...... hiện toàn bộ
Web-based data collection: detailed methods of a questionnaire and data gathering tool
Epidemiologic Perspectives & Innovations - Tập 3 - Trang 1-11 - 2006
Charles J Cooper, Sharon P Cooper, Deborah J del Junco, Eva M Shipp, Ryan Whitworth, Sara R Cooper
There have been dramatic advances in the development of web-based data collection instruments. This paper outlines a systematic web-based approach to facilitate this process through locally developed code and to describe the results of using this process after two years of data collection. We provide a detailed example of a web-based method that we developed for a study in Starr County, Texas, ass...... hiện toàn bộ
Author's response to Poole, C. Commentary: How Many Are Affected? A Real Limit of Epidemiology
Epidemiologic Perspectives & Innovations - Tập 7 - Trang 1-3 - 2010
Nicolle M Gatto, Ulka B Campbell, Sharon Schwartz
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