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Motor activity patterns can distinguish between interepisode bipolar disorder patients and healthy controls

J. Schneider, E. Bakštein, M. Kolenič, P. Vostatek, CU. Correll, D. Novák, F. Španiel

. 2022 ; 27 (1) : 82-92. [pub] 20200904

Jazyk angličtina Země Spojené státy americké

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc22019413
E-zdroje Online Plný text

NLK ProQuest Central od 2012-06-01 do Před 1 rokem
Health & Medicine (ProQuest) od 2012-06-01 do Před 1 rokem
Psychology Database (ProQuest) od 2012-06-01 do Před 1 rokem

Odkazy

PubMed 32883376
DOI 10.1017/s1092852920001777
Knihovny.cz E-zdroje

BACKGROUND: Bipolar disorder (BD) is linked to circadian rhythm disruptions resulting in aberrant motor activity patterns. We aimed to explore whether motor activity alone, as assessed by longitudinal actigraphy, can be used to classify accurately BD patients and healthy controls (HCs) into their respective groups. METHODS: Ninety-day actigraphy records from 25 interepisode BD patients (ie, Montgomery-Asberg Depression Rating Scale (MADRS) and Young Mania Rating Scale (YMRS) < 15) and 25 sex- and age-matched HCs were used in order to identify latent actigraphic biomarkers capable of discriminating between BD patients and HCs. Mean values and time variations of a set of standard actigraphy features were analyzed and further validated using the random forest classifier. RESULTS: Using all actigraphy features, this method correctly assigned 88% (sensitivity = 85%, specificity = 91%) of BD patients and HCs to their respective group. The classification success may be confounded by differences in employment between BD patients and HCs. When motor activity features resistant to the employment status were used (the strongest feature being time variation of intradaily variability, Cohen's d = 1.33), 79% of the subjects (sensitivity = 76%, specificity = 81%) were correctly classified. CONCLUSION: A machine-learning actigraphy-based model was capable of distinguishing between interepisode BD patients and HCs solely on the basis of motor activity. The classification remained valid even when features influenced by employment status were omitted. The findings suggest that temporal variability of actigraphic parameters may provide discriminative power for differentiating between BD patients and HCs while being less affected by employment status.

Citace poskytuje Crossref.org

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