Revealing causal heterogeneity using time series analysis of ambulatory assessments: application to the association between depression and physical activity after myocardial infarction

Psychosomatic Medicine
Judith G M RosmalenElisabeth H Bos

Abstract

Studies in psychosomatic medicine are characterized by analyses that typically compare groups. This nomothetic approach leads to conclusions that apply to the average group member but not necessarily to individual patients. Idiographic studies start at the individual patient and are suitable to study associations that differ between time points or between individuals. We illustrate the advantages of the idiographic approach in analyzing ambulatory assessments, taking the association between depression and physical activity after myocardial infarction as an example. Five middle-aged men who had myocardial infarction with mild to moderate symptoms of depression were included in this study. Four of these participants monitored their physical activity and depressive symptoms during a period of 2 to 3 months using a daily self-registration form. The time series of each individual participant were investigated using vector autoregressive modeling, which enables the analysis of temporal dynamics between physical activity and depression. We found causal heterogeneity in the association between depression and physical activity. Participants differed in the predominant direction of effect, which was either from physical activity to depre...Continue Reading

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Citations

Feb 14, 2015·IEEE Journal of Biomedical and Health Informatics·Ando Celino EmerenciaMarco Aiello
Mar 31, 2016·Multivariate Behavioral Research·Kirsten BulteelEva Ceulemans
Jun 3, 2015·Scandinavian Journal of Psychology·Jan H HoutveenSaskia van Broeckhuysen-Kloth
Jun 11, 2014·Journal of Psychosomatic Research·Anne van GilsJudith G M Rosmalen
Oct 25, 2016·Frontiers in Psychology·Kirsten BulteelEva Ceulemans
May 17, 2014·Acta Psychiatrica Scandinavica·S L van OckenburgJ G M Rosmalen
Mar 8, 2016·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Beate WildHans-Christoph Friederich
Apr 17, 2018·Multivariate Behavioral Research·Sacha EpskampDenny Borsboom
Apr 21, 2018·Critical Reviews in Clinical Laboratory Sciences·Robin N GroenAlbert K Groen
May 29, 2018·Clinical Psychological Science : a Journal of the Association for Psychological Science·Sacha EpskampAngélique O J Cramer
Apr 17, 2020·PloS One·Tatjana Stadnitski
Feb 20, 2020·Annual Review of Clinical Psychology·Aidan G C Wright, William C Woods
Dec 12, 2018·Pain Research & Management : the Journal of the Canadian Pain Society = Journal De La Société Canadienne Pour Le Traitement De La Douleur·Monica L JoustraKarin A M Janssens
Feb 11, 2015·Epidemiology·Kimmo HerttuaPekka Martikainen
May 15, 2012·Psychosomatic Medicine·Thomas Kubiak, Arthur A Stone
Dec 8, 2020·Frontiers in Psychiatry·Marij ZuidersmaElisabeth H Bos
Feb 12, 2021·Sleep Medicine Reviews·Sarah AtouiPaquito Bernard
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Sep 9, 2020·Psychotherapy and Psychosomatics·Noortje P JanssenMarcus J H Huibers

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