Whiplash-associated Disorders: Who Gets Depressed? Who Stays Depressed?

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SOURCE:   Eur Spine J. 2010 (Jun); 19 (6): 945–956

Leah A. Phillips, Linda J. Carroll,
J. David Cassidy, and Pierre Côté

Department of Public Health Sciences,
Alberta Centre for Injury Control and Research,
School of Public Health, University of Alberta,
4075 RTF, 8308 114 St, Edmonton, AB, T6G 2E1, Canada.

Depression is common in whiplash-associated disorders (WAD). Our objectives were to identify factors associated with depressive symptomatology occurring in the initial stages of WAD, and to identify factors predicting the course of depressive symptoms. A population-based cohort of adults sustaining traffic-related WAD was followed at 6 weeks, 3, 6, 9, and 12 months. Baseline measures (assessed a median of 11 days post-crash) included demographic and collision-related factors, prior health, and initial post-crash pain and symptoms. Depressive symptomatology was assessed at baseline and at each follow-up using the Centre for Epidemiological Studies Depression Scale   (CES-D).   We included only those who participated at all follow-ups (n = 3,452; 59% of eligible participants). Using logistic regression, we identified factors associated with initial (post-crash) depression. Using multinomial regression, we identified baseline factors predicting course of depression. Courses of depression were no depression; initial depression that resolves, recurs or persists, and later onset depression. Factors associated with initial depression included greater neck and low back pain severity, greater percentage of body in pain, numbness/tingling in arms/hand, dizziness, vision problems, post-crash anxiety, fracture, prior mental health problems, and poorer general health. Predictors of persistent depression included older age, greater initial neck and low back pain, post-crash dizziness, vision and hearing problems, numbness/tingling in arms/hands, anxiety, prior mental health problems, and poorer general health. Recognition of these underlying risk factors may assist health care providers to predict the course of psychological reactions and to provide effective interventions.


From the FULL TEXT Article:


The biopsychosocial model of health posits that in addition to biomedical factors, psychological, and sociological factors play important roles in the diagnosis, treatment, and recovery from illness and disease. [11] According to the Quebec Task Force on whiplash-associated disorders, whiplash is defined as an acceleration–deceleration mechanism of energy transferred to the neck as a result of a motor vehicle collision, and the resulting injury or cluster of symptoms is referred to as whiplash-associated disorders (WAD). [20] WAD is a disorder where the interplay between biological and psychosocial factors appears to have an important effect on recovery. [8]

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Research into these various interactive factors and recovery from WAD is still in a preliminary state. Research findings are relatively consistent with respect to the roles that greater initial pain intensity and symptom severity play in prolonging WAD recovery. [8] The bulk of the evidence examining psychological factors suggests that these factors also play a role in WAD recovery. For example, psychological stress, emotional labiality, and depression have all been shown to play a significant role in the natural history of WAD. [2, 21] However, the effect of such factors has yet to be fully teased out with respect to what factors are consistently present, how these factors are associated with baseline pre-crash factors, and how these psychological factors and their possible interactions affect diagnosis, treatment, and recovery in WAD. [8]

The current study focuses on depressive symptomatology. Depressive symptomatology has been reported to be common in the early stage of WAD recovery, with an incidence of over 40% within the first few weeks after a traffic collision, and with another 20% of persons with WAD developing such symptomatology later in their course of recovery. [6] In the majority of cases these post-crash depressive symptoms resolve satisfactorily with no recurrence. However, many others with WAD do not experience good resolution of their post-crash depressive symptoms, instead experiencing a recurrent or persistent course. [6] In addition to the personal health burden of ongoing depressive symptoms, their importance is underscored by their association with poor WAD recovery. [7]

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