The Muscatine children's obesity data reanalysed using pattern mixture models
The Muscatine children's obesity data reanalysed using pattern mixture models
A set of longitudinal binary, partially incomplete, data on obesity among children in the USA is reanalysed. The multivariate Bernoulli distribution is parameterized by the univariate marginal probabilities and dependence ratios of all orders, which together support maximum likelihood inference. The temporal association of obesity is strong and complex but stationary. We fit a saturated model for the distribution of response patterns and find that non-response is missing completely at random for boys but that the probability of obesity is consistently higher among girls who provided incomplete records than among girls who provided complete records. We discuss the statistical and substantive features of, respectively, pattern mixture and selection models for this data set.
cohort data, correlated binary data, dependence ratio, informative non-response, selection model
251-263
Ekholm, A.
a9dc12c7-0bc5-4b26-a833-3967dc748d5a
Skinner, C.
ad791b5f-3b45-446d-b129-8f533445aaba
1998
Ekholm, A.
a9dc12c7-0bc5-4b26-a833-3967dc748d5a
Skinner, C.
ad791b5f-3b45-446d-b129-8f533445aaba
Ekholm, A. and Skinner, C.
(1998)
The Muscatine children's obesity data reanalysed using pattern mixture models.
Journal of the Royal Statistical Society: Series C (Applied Statistics), 47 (2), .
Abstract
A set of longitudinal binary, partially incomplete, data on obesity among children in the USA is reanalysed. The multivariate Bernoulli distribution is parameterized by the univariate marginal probabilities and dependence ratios of all orders, which together support maximum likelihood inference. The temporal association of obesity is strong and complex but stationary. We fit a saturated model for the distribution of response patterns and find that non-response is missing completely at random for boys but that the probability of obesity is consistently higher among girls who provided incomplete records than among girls who provided complete records. We discuss the statistical and substantive features of, respectively, pattern mixture and selection models for this data set.
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Published date: 1998
Keywords:
cohort data, correlated binary data, dependence ratio, informative non-response, selection model
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Social Statistics
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Local EPrints ID: 34676
URI: http://eprints.soton.ac.uk/id/eprint/34676
ISSN: 0035-9254
PURE UUID: 89b2551a-b559-4a6b-bf14-aa268cc9f950
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Date deposited: 08 May 2007
Last modified: 22 Jul 2022 20:43
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Author:
A. Ekholm
Author:
C. Skinner
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