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Sub-typing daily fatigue progression in CFS

Saturday 12 May 2012


From the Journal of Mental Health (via Informa Healthcare):


JournalSub-typing daily fatigue progression in Chronic Fatigue Syndrome

Posted online on May 1, 2012. (doi:10.3109/09638237.2012.670879)

Leonard A. Jason & Molly M. Brown
Center for Community Research, DePaul University, Chicago, IL, USA
Correspondence: Leonard Jason, PhD, Center for Community Research, DePaul University, 990 W. Fullerton Ave., Suite 3100, Chicago, IL 60614, USA.
Tel:  +001 773 325 2018.
Fax:  +001 773 325 4923.
E-mail: ljason@depaul.


Activity logs involve patients writing down their activities and symptoms over 1 or more days.


This study sought to classify daily fatigue patterns among patients with chronic fatigue syndrome (CFS) using activity logs.


Fatigue intensity was self-reported every 30 min in a sample of 90 patients with CFS over 1 day. A cluster analysis using fatigue intensity, variability and slope was conducted.


Three clusters emerged involving patients with different trajectories. One group evidenced high fatigue intensity, low variability, and fatigue intensity stayed the same over time. A second group had moderate fatigue intensity, high variability, and fatigue intensity decreased over time. A third group had moderate fatigue intensity, high variability, but fatigue intensity increased over time. The three clusters of patients differed on measures of actigraphy, pain and immune functioning.


Activity logs can provide investigators and clinicians with valuable sources of data for understanding patterns of fatigue and activity among patients with CFS.


The above originally appeared here.



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