Modeling Count Outcomes from HIV Risk Reduction Interventions : A Comparison of Competing Statistical Models for Count Responses
Joint Authors
Feng, Changyong
Ma, Jingming
Morrison-Beedy, Dianne
Xia, Yinglin
Tu, Xin M.
Cross, Wendi
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-25
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Modeling count data from sexual behavioral outcomes involves many challenges, especially when the data exhibit a preponderance of zeros and overdispersion.
In particular, the popular Poisson log-linear model is not appropriate for modeling such outcomes.
Although alternatives exist for addressing both issues, they are not widely and effectively used in sex health research, especially in HIV prevention intervention and related studies.
In this paper, we discuss how to analyze count outcomes distributed with excess of zeros and overdispersion and introduce appropriate model-fit indices for comparing the performance of competing models, using data from a real study on HIV prevention intervention.
The in-depth look at these common issues arising from studies involving behavioral outcomes will promote sound statistical analyses and facilitate research in this and other related areas.
American Psychological Association (APA)
Xia, Yinglin& Morrison-Beedy, Dianne& Ma, Jingming& Feng, Changyong& Cross, Wendi& Tu, Xin M.. 2012. Modeling Count Outcomes from HIV Risk Reduction Interventions : A Comparison of Competing Statistical Models for Count Responses. AIDS Research and Treatment،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-483551
Modern Language Association (MLA)
Xia, Yinglin…[et al.]. Modeling Count Outcomes from HIV Risk Reduction Interventions : A Comparison of Competing Statistical Models for Count Responses. AIDS Research and Treatment No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-483551
American Medical Association (AMA)
Xia, Yinglin& Morrison-Beedy, Dianne& Ma, Jingming& Feng, Changyong& Cross, Wendi& Tu, Xin M.. Modeling Count Outcomes from HIV Risk Reduction Interventions : A Comparison of Competing Statistical Models for Count Responses. AIDS Research and Treatment. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-483551
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483551