PROBLEM TO BE SOLVED: To provide a calculating method of an obstructive sleep apnea syndrome risk determination index that can easily calculate the obstructive sleep apnea syndrome risk determination index that becomes an objective material to determine risk of developing of the obstructive sleep apnea syndrome for a subject; a program thereof.;SOLUTION: An obstructive sleep apnea syndrome risk determination index is calculated by calculating P=((S-B)+(Go-B)+(Cd-Go))/(S-A) by using a distance (S-A) between S and A, a distance (S-B) between S and B, a distance (Go-B) between Go and B, and a distance (Cd-Go) between Cd and Go measured by cephalography of a subject. Risk of developing of obstructive sleep apnea syndrome is determined based on the obstructive sleep apnea syndrome risk determination index.;COPYRIGHT: (C)2014,JPO&INPIT
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