A hybrid model for nonignorable dropout in longitudinal binary responses.
A hybrid model for nonignorable dropout in longitudinal binary responses.
复制标题
纵向二元响应中不可忽略的丢失的混合模型。
DOI:
10.1111/j.1541-0420.2005.00402.x
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
Fitzmaurice,GarrettM
中科院分区:
文献类型:
--
作者:
Wilkins,KennethJ;Fitzmaurice,GarrettM
This article presents a likelihood-based method for handling nonignorable dropout in longitudinal studies with binary responses. The methodology developed is appropriate when the target of inference is the marginal distribution of the response at each occasion and its dependence on covariates. A “hybrid” model is formulated, which is designed to retain advantageous features of the selection and pattern-mixture model approaches. This formulation accommodates a variety of assumed forms of nonignorable dropout, while maintaining transparency of the constraints required for identifying the overall model. Once appropriate identifying constraints have been imposed, likelihood-based estimation is conducted via the EM algorithm. The article concludes by applying the approach to data from a randomized clinical trial comparing two doses of a contraceptive.
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DOI:
--
发表时间:
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期刊:
Journal of the American Medical Association (JAMA)
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