Table 3.

Discriminate analysis for Odor Stick Identification Test for Japanese (OSIT-J) in parkinsonian disorders.

	OSIT-J score (7)	OSIT-J score (8)	Sensitivity (95%CI)	Specificity (%)	Positive predictive value	Negative predictive value
PD/Control	28/0	8/29	78 (61-90)	100 (88-100)	100 (88-100)	78 (62-90)
PD/MSA-P	28/4	8/11	78 (61-90)	73 (45-92)	88 (71-96)	58 (33-80)
PD/PSP	28/2	8/5	78 (61-90)	71 (29-96)	93 (78-99)	38 (14-68)

This analysis included data of only 36 patients with Parkinson disease who had ≤ 3-year history of PD.