Table 1.
Demographic and clinical data for all Parkinson’s Disease patients (all PD), the Chinese (Chinese PD) and German (German PD) cohorts of PD; healthy probands and its subgroups of young (20–40 years old) healthy subjects and age matched controls for the PD groups.
Fig 1.
Odors of all 16 Sniffin’ Sticks (bold) and descriptors (changed descriptor for the Chinese version in oblique).
Blue colored sticks are those that remained unchanged in SIT-12 and Ch-SIT-12. The other correspondingly colored sticks present the original sticks and its adapted version (sticks 13–16) for the Chinese SIT-12. Mean values (± standard error of the mean) of correct answer rates for every single Sniffin’ Stick for all German (G, N = 100) and Chinese (Ch; N = 70) healthy subjects.
Fig 2.
Numbers of correct odor identifications as median with interquantile range and single measures as dots for all tested cohorts and subgroups as well as both tested Sniffin’ Stick sets (SIT-12 = original German version; Ch-SIT-12 = adapted Chinese version).
Blue = all healthy subjects (HP); Orange = subgrop of young (20–40 years old) healthy subjects (yHP); Red = all patients (Pat), Green = age matched subgroup of healthy subjects as control group for patients (CTL).
Fig 3.
Receiver operating characteristics (ROC-curves) for a threshold value of > 7.5 for the comparison of German patients and controls (left) and Chinese patients and controls (right) for the original SIT-12 (blue) and the Chinese adapted version Ch-SIT-12 (red).