TY - JOUR
T1 - Multivariate analysis of objective vocal function
AU - Piccirillo, Jay F.
AU - Fuller, Dennis
AU - Painter, Colin
AU - Fredrickson, John M.
PY - 1998
Y1 - 1998
N2 - No standard and valid multidimensional index of objective voice function has been developed that integrates the information generated from the multiple objective parameters of voice function. The goals of this research were 1) to identify important objective voice parameters and 2) to create a multidimensional voice function index by combining relevant parameters. We evaluated 97 dysphonic patients and 35 normal volunteers on 14 objective voice parameters. Three multidimensional voice indices were created and evaluated: 1) nonweighted univariate index, 2) weighted odds ratio index, and 3) weighted multivariate regression index. The univariate index required all 14 parameters, while the odds ratio and logistic regression models required only 4 parameters (frequency range, airflow at lips, maximum phonation time, and subglottic pressure). The χ2 values for the 3 models were 37.8, 37.6, and 46.0, respectively. All 3 indices were able to satisfactorily classify voice function as normal or abnormal. However, the regression index performed best.
AB - No standard and valid multidimensional index of objective voice function has been developed that integrates the information generated from the multiple objective parameters of voice function. The goals of this research were 1) to identify important objective voice parameters and 2) to create a multidimensional voice function index by combining relevant parameters. We evaluated 97 dysphonic patients and 35 normal volunteers on 14 objective voice parameters. Three multidimensional voice indices were created and evaluated: 1) nonweighted univariate index, 2) weighted odds ratio index, and 3) weighted multivariate regression index. The univariate index required all 14 parameters, while the odds ratio and logistic regression models required only 4 parameters (frequency range, airflow at lips, maximum phonation time, and subglottic pressure). The χ2 values for the 3 models were 37.8, 37.6, and 46.0, respectively. All 3 indices were able to satisfactorily classify voice function as normal or abnormal. However, the regression index performed best.
KW - Health care research
KW - Health status index
KW - Multivariate analysis
KW - Voice disorders
KW - Voice quality
UR - http://www.scopus.com/inward/record.url?scp=6844240232&partnerID=8YFLogxK
U2 - 10.1177/000348949810700205
DO - 10.1177/000348949810700205
M3 - Article
C2 - 9486904
AN - SCOPUS:6844240232
SN - 0003-4894
VL - 107
SP - 107
EP - 112
JO - Annals of Otology, Rhinology and Laryngology
JF - Annals of Otology, Rhinology and Laryngology
IS - 2
ER -