Table 2.

Odds of using a tremor medication

Factors	OR (95% CI), p value univariate analysis*
Age in years	1.01 (0.995 – 1.02), p = 0.24
Gender	0.88 (0.58 – 1.35), p = 0.57
White Race	0.96 (0.69 – 1.34), p = 0.79
Education (years)	0.98 (0.93 – 1.03), p = 0.44
Age of tremor onset in years	1.001 (0.99 – 1.01), p = 0.82
Tremor duration in years	1.004 (0.99 – 1.02), p = 0.46
First- or second-degree relative with ET or tremor	1.64 (1.06 – 2.55), p = 0.03
Total tremor score	1.05 (1.01 – 1.08), p = 0.005
Tremor disability scale score	1.01 (1.005 – 1.02), p = 0.001
Performance-based test score	1.02 (1.002 – 1.03), p = 0.02
CIRS score	1.05 (0.99 – 1.12), p = 0.09
Head tremor by history	1.22 (0.79 – 1.90), p = 0.38
Head tremor on exam	1.27 (0.83 – 1.96), p = 0.27
Voice tremor by history	1.38 (0.80 – 2.38), p = 0.25
Voice tremor on exam	1.46 (0.93 – 2.31), p = 0.10
Reported embarrassment	1.98 (1.28 – 3.05), p = 0.002

^*dependent variable = current use of a tremor medication.

CIRS = Cumulative Illness Rating Scale.