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Voice disorders in the workplace: Productivity in spasmodic dysphonia and the impact of botulinum toxin

The impact of the disordered voice on standard work productivity measures and employment trends is difficult to quantify; this is in large part due to the heterogeneity of the disease processes. Spasmodic dysphonia (SD), a chronic voice disorder, may be a useful model to study this impact. Self‐reported work measures (worked missed, work impairment, overall work productivity, and activity impairment) were studied among patients receiving botulinum toxin (BTX) treatments for SD. It was hypothesized that there would be a substantial difference in work‐related measures between the best and worst voicing periods. In addition, job types, employment shifts, and vocal requirements during the course of vocal disability from SD were investigated for each individual, and the impact of SD on these patterns was studied.