Document Detail


Multi-profile hidden Markov model for mood, dietary intake, and physical activity in an intervention study of childhood obesity.
MedLine Citation:
PMID:  23322318     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Motivated by an application to childhood obesity data in a clinical trial, this paper describes a multi-profile hidden Markov model (HMM) that uses several temporal chains of measures respectively related to psychosocial attributes, dietary intake, and energy expenditure behaviors of adolescents in a school setting. Using these psychological and behavioral profiles, the model delineates health states from the longitudinal data set. Furthermore, a two-level regression model that takes into account the clustering effects of students within school is used to assess the effects of school-based and community-based interventions and other risk factors on the transition between health states over time. The results from our study suggest that female students tend to decrease their physical activities despite a high level of anxiety about weight. The finding is consistent across intervention and control arms.
Authors:
E H Ip; Q Zhang; R Schwartz; J Tooze; X Leng; H Han; D A Williamson
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2013-01-16
Journal Detail:
Title:  Statistics in medicine     Volume:  32     ISSN:  1097-0258     ISO Abbreviation:  Stat Med     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-07-12     Completed Date:  2014-02-24     Revised Date:  2014-09-02    
Medline Journal Info:
Nlm Unique ID:  8215016     Medline TA:  Stat Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  3314-31     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 John Wiley & Sons, Ltd.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Affect*
Eating / physiology*,  psychology*
Energy Metabolism / physiology
Female
Humans
Louisiana
Markov Chains*
Models, Psychological*
Models, Statistical*
Motor Activity / physiology*
Pediatric Obesity / psychology,  therapy*
Rural Population
Students
Grant Support
ID/Acronym/Agency:
R01 AG031827/AG/NIA NIH HHS; U01 HL101066/HL/NHLBI NIH HHS; U01HL101066-01/HL/NHLBI NIH HHS
Comments/Corrections

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