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Auditory beep at high frequency with a Detection Ratio \\> 1.2 is interpreted by device as the suspect tissue being positive for parathyroid.","id":"BG000","title":"NIRAF Detection Technology +"},{"description":"Parathyroid gland identification will be performed with the naked eye of the surgeon without using PTeye - NIRAF detection technology in patients who undergo parathyroidectomy (PTx).","id":"BG001","title":"NIRAF Detection Technology -"},{"description":"Total of all reporting groups","id":"BG002","title":"Total"}],"measures":[{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","spread":"14.6","value":"56.8"},{"groupId":"BG001","spread":"14.4","value":"59.8"},{"groupId":"BG002","spread":"14.5","value":"58.3"}]}]}],"dispersionType":"STANDARD_DEVIATION","paramType":"MEAN","title":"Age, 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(pg/dL)","unitOfMeasure":"mg/dL"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","spread":"79.8","value":"152.3"},{"groupId":"BG001","spread":"139","value":"163.6"},{"groupId":"BG002","spread":"112.7","value":"157.9"}]}]}],"dispersionType":"STANDARD_DEVIATION","paramType":"MEAN","title":"Preoperative PTH (pg/mL)","unitOfMeasure":"pg/mL"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","spread":"16","value":"36.7"},{"groupId":"BG001","spread":"20.5","value":"39.6"},{"groupId":"BG002","spread":"18.2","value":"38.1"}]}]}],"dispersionType":"STANDARD_DEVIATION","paramType":"MEAN","title":"Preoperative vitamin 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