BackgroundEmbarrassment can be a considerable problem for patients with essential tremor (ET) and is a major motivator for treatment. Depression is also a common feature of ET; as many as 35?% of patients report moderate to severe depressive symptoms. Our goal was to assess the associations between these motor and psychosocial factors (tremor, depression, embarrassment) in ET, with a particular interest in more fully assessing the possible association between depression and embarrassment. MethodsNinety one ET cases (age 70.4?±?12.8?years) enrolled in a prospective, clinical-epidemiological study. Depressive symptoms were assessed with the Center for Epidemiological Studies Depression Scale (CESD-10, 0–30 [maximum]), embarrassment, with the Essential Tremor Embarrassment Assessment (ETEA, 0–70 [maximum]), and action tremor, with a detailed in-person neurological examination. ResultsHigher CESD-10 score was significantly associated with higher ETEA score ( p =?0.005), but not with increasing tremor severity ( p =?0.94). In stratified analyses, cases with no or minimal depressive symptoms had the lowest ETEA scores, cases with moderate depressive symptoms had intermediate ETEA scores, and cases with severe depressive symptoms had the highest ETEA scores ( p =?0.01). Furthermore, at each level of tremor severity, cases with more depressive symptoms had more embarrassment. ConclusionsDepressive symptoms seem to be more than a secondary response to the tremor in ET; they seem to amplify the level of embarrassment and, in addition to their own importance, seem to be a driver of other important clinical outcomes. Earlier treatment of depressive symptoms in ET patients could lessen the burden of secondary embarrassment.
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