To investigate the reliability and correlation of standardized clinical assessments and x-ray assessments of adenoidal obstruction.
Children were studied as part of a comprehensive, prospective study of the indications for tonsillectomy and adenoidectomy that was carried out at the Children's Hospital of Pittsburgh between 1971 and 1991.
The patient's degree of mouth breathing and speech hyponasality were rated on a 4-point scale and scores were averaged to obtain an overall Nasal Obstruction Index. Lateral x-rays of the nasopharynx were also performed and the adenoid size and degree of nasopharyngeal obstruction were rated. Correlations between clinical assessments and roentgenographic findings were then calculated, as were predictive values for the clinical ratings using the roentgenographic ratings as the gold standard.
An assessment of intraobserver agreement with regard to the clinical and x-ray assessments revealed overall excellent...