| Case No | Age (years) | Sex | UPSIT score | PD probability22 | Disease duration (years) | Used dopaminergic drugs? | Parkinsonian signs |
| 1 | 72 | W | 22 | High | 5 | Yes | S, T, R |
| 2 | 61 | M | 29 | Low | 2 | No | T |
| 3 | 51 | W | 29 | Low | 4 | No | T, R |
| 4 | 75 | W | 32 | Low | 6 | No | T, R |
| 5 | 81 | M | 18 | High | 22 | Yes | T |
| 6 | 78 | W | 27 | Low | 10 | Yes | T, S |
| 7 | 60 | W | 30 | Low | 11 | Yes | T, R, S |
| 8 | 79 | M | 33 | Low | 15 | No | T |
| 9 | 69 | M | 33 | Low | 7 | Yes | T, S |
| 10 | 38 | M | 34 | Low | 3 | No | T, S, R |
| 11 | 68 | M | 26 | Low | 20 | Yes | T, S, R |
| 12 | 46 | W | 33 | Low | 5 | No | T, S, R |
| 13 | 50 | W | 29 | Low | 40 | Yes | T, S, R |
| 14 | 66 | M | 27 | Low | 5 | No | T, S, R |
| 15 | 71 | W | 23 | High | 10 | No | T, S |
| 16 | 79 | W | 28 | Low | 7 | Yes | T, S, R |
| 17 | 66 | M | 19 | High | 2 | No | T |
| 18 | 65 | W | 33 | Low | 13 | No | T, S |
| 19 | 70 | M | 18 | High | 4 | Yes | B, T, R |
| 20 | 65 | M | 26 | Low | 2 | No | B, T, R |
| 21 | 63 | W | 25 | Low | 2 | No | S, T, R |
Patient No 13 had tremor since her early teens. Patient No 19 had a Mini-Mental State examination score of 24/30.
B, bradykinesia with motor decrement and fatiguing on sequential movement; PD, Parkinson’s disease; R, rigidity; S, slowness without true bradykinesia; SWEDDs, patients initially diagnosed as Parkinson’s disease who subsequently had normal DaTSCANs; T, tremor; UPSIT, 40 items University of Pennsylvania Smell Identification Test.