MBS measurement tool for swallow impairment--MBSImp: establishing a standard.
The aim of this study was to test reliability, content, construct, and external validity of a new modified barium swallowing study (MBSS) tool (MBSImp) that is used to quantify swallowing impairment. Multiple regression, confirmatory factor, and correlation analyses were used to analyze 300 in- and outpatients with heterogeneous medical and surgical diagnoses who were sequentially referred for MBS exams at a university medical center and private tertiary care community hospital. Main outcome measures were the MBSImp and index scores of aspiration, health status, and quality of life. Inter- and intrarater concordance were 80% or greater for blinded scoring of MBSSs. Regression analysis revealed contributions of eight of nine swallow types to impressions of overall swallowing impairment (p < or = 0.05). Factor analysis revealed 13 significant components (loadings >/= 0.5) that formed two impairment groupings (oral and pharyngeal). Significant correlations were found between Oral and Pharyngeal Impairment scores and Penetration-Aspiration Scale scores, and indexes of intake status, nutrition, health status, and quality of life. The MBSImp demonstrated clinical practicality, favorable inter- and intrarater reliability following standardized training, content, and external validity. This study reflects potential for establishment of a new standard for quantification and comparison of oropharyngeal swallowing impairment across patient diagnoses as measured on MBSS.
Martin-Harris
Bonnie
B
Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, 135 Rutledge Avenue, MSC 550, Charleston, SC, 29425-5500, USA. harrisbm@musc.edu
Brodsky
Martin B
MB
Michel
Yvonne
Y
Castell
Donald O
DO
Schleicher
Melanie
M
Sandidge
John
J
Maxwell
Rebekah
R
Blair
Julie
J
D003627:Data Interpretation, Statistical; D003679:Deglutition; D003680:Deglutition Disorders / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D010779:Photofluorography / Q000295:instrumentation; D012044:Regression Analysis; D015203:Reproducibility of Results; D013223:Statistics as Topic; D014481:United States