PMID- 32440309 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240328 IS - 1867-1764 (Print) IS - 1867-1772 (Electronic) IS - 1867-1764 (Linking) VI - 11 IP - 2 DP - 2019 Jul TI - Joint and Individual Representation of Domains of Physical Activity, Sleep, and Circadian Rhythmicity. PG - 371-402 LID - 10.1007/s12561-019-09236-4 [doi] AB - Developments in wearable technology have enabled researchers to continuously and objectively monitor various aspects and physiological domains of real-life including levels of physical activity, quality of sleep, and strength of circadian rhythm in many epidemiological and clinical studies. Current analytical practice is to summarize each of these three domains individually via a standard inventory of interpretable features, and explore individual associations between the features and clinical variables. However, the features often exhibit significant interaction and correlation both within and between domains. Integration of features across multiple domains remains methodologically challenging. To address this problem, we propose to use joint and individual variation explained (JIVE), a dimension reduction technique that efficiently deals with multivariate data representing multiple domains. In this paper, we review the most frequently used features to characterize the domains of physical activity, sleep, and circadian rhythniicity and illustrate the approach using wrist-worn actigraphy data from 198 participants of the Baltimore Longitudinal Study of Aging. FAU - Di, Junrui AU - Di J AD - Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health. FAU - Spira, Adam AU - Spira A AD - Johns Hopkins Center on Aging and Health. AD - Departnient of Mental Health, Johns Hopkins Bloomberg School of Public Health. AD - Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine. FAU - Bai, Jiawei AU - Bai J AD - Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health. FAU - Urbanek, Jacek AU - Urbanek J AD - Department of Medicine, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine. FAU - Leroux, Andrew AU - Leroux A AD - Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health. FAU - Wu, Mark AU - Wu M AD - Departments of Neurology and Neuroscience, Johns Hopkins University School of Medicine. FAU - Resnick, Susan AU - Resnick S AD - Intramural Research Program, National Institute on Aging, National Institutes of Health. FAU - Simonsick, Eleanor AU - Simonsick E AD - Intramural Research Program, National Institute on Aging, National Institutes of Health. FAU - Ferrucci, Luigi AU - Ferrucci L AD - Intramural Research Program, National Institute on Aging, National Institutes of Health. FAU - Schrack, Jennifer AU - Schrack J AD - Johns Hopkins Center on Aging and Health. AD - Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health. FAU - Zipunnikov, Vadim AU - Zipunnikov V AD - Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health. AD - Johns Hopkins Center on Aging and Health. LA - eng GR - P30 AG066507/AG/NIA NIH HHS/United States GR - R01 AG050507/AG/NIA NIH HHS/United States GR - T32 AG000247/AG/NIA NIH HHS/United States PT - Journal Article DEP - 20190415 PL - United States TA - Stat Biosci JT - Statistics in biosciences JID - 101498115 PMC - PMC7241438 MID - NIHMS1030153 OTO - NOTNLM OT - Circadian Rhythmicity OT - Dimension Reduction OT - JIVE OT - Multi-domain OT - Physical Activity OT - Sleep EDAT- 2020/05/23 06:00 MHDA- 2020/05/23 06:01 PMCR- 2020/07/01 CRDT- 2020/05/23 06:00 PHST- 2020/05/23 06:00 [entrez] PHST- 2020/05/23 06:00 [pubmed] PHST- 2020/05/23 06:01 [medline] PHST- 2020/07/01 00:00 [pmc-release] AID - 10.1007/s12561-019-09236-4 [doi] PST - ppublish SO - Stat Biosci. 2019 Jul;11(2):371-402. doi: 10.1007/s12561-019-09236-4. Epub 2019 Apr 15.