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tion
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This information included participant age, gender,
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and primary and ancillary dystonic diagnoses
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RESULTS
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Participant demographics
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The survey included a total of 158 participants comprised
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of responses from 133 cisgender female participants and 25
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cisgender male participants with a mean age of 64.8 years
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old and participant age ranging from 22 years old to 95
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years old (Figure 1)
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Adductor spasmodic dysphonia was
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the most common condition with 65 participants claiming
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this diagnosis (Figure 1)
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Mixed spasmodic dysphonia was
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found to be the second most common with 37 responses
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claiming this diagnosis, and abductor spasmodic dysphonia
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closely followed at 30 participant responses (Figure 1)
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Muscle tension dysphonia, vocal tremor, and vocal
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FIGURE 1
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Demographic data of participants capturing gender,
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age, dysphonia, and dystonia outside the vocal cords
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Journal of Voice, Vol
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xx, No
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xx, xxxx 2
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Downloaded for Anonymous User (n/a) at McMaster University from ClinicalKey.com by Elsevier on September 08,
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2023
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For personal use only
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No other uses without permission
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Copyright ©2023
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Elsevier Inc
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All rights reserved
|
dystonia otherwise not specified were less common diag-
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noses for this survey population (Figure 1)
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A majority of
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the respondents were not diagnosed with dystonia or
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tremor elsewhere in their body, though 51 of the partici -
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pants (32.3%) reported experiencing dystonia or tremor
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beyond their vocal symptoms (Figure 1)
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Participants using cannabinoid products to treat
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vocal dystonia
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Of the 85 (53.8%) participants who stated they had tried
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using cannabinoid products at least once in the past to treat
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their vocal condition (Figure 2A), 45 participants (52.9%)
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stated they currently use cannabinoid products as treat -
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ment (Figure 2A)
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Among these participants, 24 partici -
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pants (53.3%) used cannabinoid products daily (Figure 2B)
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Eight participants used cannabinoid products once a week,
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six participants used cannabinoid products multiple times a
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week, and seven participants used cannabinoid products
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more sparingly at once or twice a month (Figure 2B)
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The
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majority of participants reported using cannabinoid pro-
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ducts to treat their symptoms for at least 1 year (58.8%)
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with 28 of these participants (32.9%) reporting use for
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approximately 1–2 years and 22 of these participants
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(25.9%) reporting using for at least 3 years (Figure 2C)
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Seventeen respondents reported using cannabinoid pro-
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ducts for less than a month and 12 respondents reported
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several months of use (Figure 2C)
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Respondents were most likely to use cannabinoid pro-
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ducts containing CBD alone (32 of 85 participants) or CBD
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in combination with THC (39 of 85 participants) and were
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less likely to use THC products alone (12 of 85 participants)
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(Figure 3)
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Among participants who actively used cannabi -
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noids to treat their vocal condition, the most frequently used formulation of cannabinoid products was edible products,
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with 29 respondents (64.4%) stating they used this pre-
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paration (Figure 3)
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Twelve participants who selected
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“other” specified that they used a tincture preparation of
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cannabinoids and one participant specified tablets, both of
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which are oral formularies that can also be classified as an
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edible cannabinoid product (Figure 3)
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The second most
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common mode of using cannabinoid products was via
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smoke inhalation, with 16 participants (35.6%) using this
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method (Figure 3)
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Vaping was another common method of
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using cannabinoid products with 10 participants (22.2%)
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stating they used this formulation (Figure 3)
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Topical can-
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nabinoid products were the least commonly used product
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with eight participants (17.8%) stating they used this pre-
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paration; one participant who selected “other” specified that
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they used CBD patches, which can be reclassified as a to-
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pical preparation of cannabinoids (Figure 3)
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Participants who did not use cannabinoid products
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to treat vocal dystonia
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Of the 158 respondents in total, 73 (46.2%) had never tried
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using cannabinoid products to treat laryngeal dystonia/
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vocal tremor/MTD (Figure 2)
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Additionally, 40 re-
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spondents stated they had tried cannabinoid products to
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treat their condition but had since discontinued cannabi -
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noid use (Figure 2)
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The most commonly cited reason for
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discontinuing cannabinoid use among respondents was the
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ineffectiveness of these products in treating their under -
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lying vocal condition, with 31 participants (77.5%) selecting
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