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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Laryngoscope. 2011 Aug;121(8):1752–1755. doi: 10.1002/lary.21872

Table III.

Comorbid non-vocal tremor in patients with vocal tremor; frequency (%).

Controls + Vocal Tremor (n = 5) SD + Vocal Tremor (n = 33) P Odds Ratio 95% Confidence Interval
Non-vocal tremor 5 (100%) 19 (58%) 0.14 1.35 0.3 – 5.6