Research Reports - Trajectories of sleep and its predictors in the first year following traumatic brain injury
J Head Trauma Rehabil. 2014 Aug 12
Chen PY(1), Tsai PS, Chen NH, Chaung LP, Lee CC, Chen CC, Chiu HT, Lu YJ, Wei KC,Chiu HY
OBJECTIVES:: To examine how sleep patterns change over the first year following
traumatic brain injury (TBI) and to determine whether specific demographic and
disease characteristics predict the trajectories of sleep.
DESIGN:: Prospective study.
PARTICIPANTS:: Fifty-three patients with first-ever mild to severe TBI.
MAIN MEASUREMENTS:: Sleep measured by actigraphy for 7 consecutive days in the
first, third, sixth, and twelfth months following TBI: Chinese versions of Beck
Anxiety Inventory and Beck Depression Inventory-II (CBDI-II) measured at the same
time points. Data were analyzed with a linear mixed model.
RESULTS:: Sleep efficiency (the ratio of sleep time to the total time spent in
bed) showed a significant upward trend during the study period. Scores on the
Chinese version of the Beck Anxiety Inventory and the CBDI-II as well as the use
of analgesics significantly predicted the slope of change in sleep efficiency
CONCLUSIONS:: Poor sleep efficiency is a common symptom in the first year among
patients with first-ever TBI. Healthcare providers should consider both mental
health and pain issues when dealing with sleep complaints in patients with TBI.