{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"4.1","upperLimit":"12.1","value":"7.7"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"55"}],"units":"Participants"}],"description":"Measurement of the longest possible relaxed phonation of the voice \"a\" by a speech therapist\n\nThe maximum phonation time (measured in seconds) for which a person can sustain a vowel sound when produced on 1 deep breath at a comfortable pitch and loudness and is a common clinical measure of glottal efficiency.","dispersionType":"Inter-Quartile Range","groups":[{"description":"Patients who have undergone total laryngectomy and completed minimal their 6-month period without disease after surgery and post-operative treatments such as radiotherapy or chemotherapy The maximum phonation time (measured in seconds) for which a person can sustain a vowel sound when produced on 1 deep breath at a comfortable pitch and loudness and is a common clinical measure of glottal efficiency.","id":"OG000","title":"The Measures of Central Tendency and Dispersion of Maximal Phonation Time ( MPT)"}],"paramType":"MEDIAN","reportingStatus":"POSTED","timeFrame":"2 minutes","title":"The Measures of Central Tendency and Dispersion of Maximum Phonation Time (MPT)","type":"PRIMARY","unitOfMeasure":"mesured in seconds"}