Table 4.

Results of Discriminant Function Analysis Canonical Discriminant Functions: Standardized by within Variances with Means for Each Measures for the Three Patient Groups

Measure	Set 1	Set 2	Mean Muscular Tension Dysphonia	Mean Spasmodic Dysphonia	Mean Tremor
Alot of Work to Talk	3.035	0.283	71.9	70.1	59.0
Laughing Less Affected than Speech	4.289	0.366	25.4	20.3	38.5
Crying Less Affected than Speech	-2.320	0.153	32.7	28.4	34.2
Shouting Less Affected than Speech	-2.384	0.740	36.9	62.5	44.8
Whisper Less Affected than Speech	-1.892	-0.846	17.3	22.1	42.8
Mean number of abductor breaks in 20 sentences	-3.611	1.037	1.2	2.0	1.7
Mean number of adductor breaks in 20 sentences	3.851	-1.048	1.3	2.5	1.7
Voice Tremor during Prolonged Vowel	-2.642	-0.384	21.3	29.9	52.0
Voice Abnormality during Shouting	1.227	-0.251	19.1	22.4	16.8
Functional Vocal Fold Asymmetry	4.098	0.241	2.5	3.9	0.0
Vocal Fold Tremor at Rest	-1.481	-0.108	3.0	5.4	22.8
Constant Abnormal Laryngeal Posture during Voice	1.354	-0.896	52.1	11.7	17.3
Constant Abnormal Laryngeal Posture during Whisper	-0.842	1.379	47.2	18.2	4.2
Group means:
Muscular Tension Dysphonia	6.077	-0.231
Spasmodic Dysphonia	-2.249	1.065
Tremor	-3.493	-2.318