Table 1.
Demographics and diagnostic findings among 12 subjects with iRBD and 12 control subjects
| Demographics | Subjects with iRBD | Control subjects |
|---|---|---|
| Men | 11 | 3 |
| Age, y | 59 ± 10.5 (38-71) | 56.8 ± 10.6 (42-74) |
| Clinical scores | ||
| MMSE | 29.2 ± 0.8 (26-30) | NA |
| TDI sum score | 23 ± 9.4 (8-35) | NA |
| Imaging study results | ||
| FP-CIT SPECT tracer uptakea | ||
| Normal | 3 | NA |
| Reduced or asymmetric | 4 | NA |
Data are shown as mean + SD (range) or number. MMSE refers to Mini-Mental Status Examination; TDI, the threshold-discrimination-identification in the Sniffin' Stick Test (a TDI sum score ≥ 30 is defined as normosmia).64
a
Data are from 7 subjects with idiopathic rapid eye movement sleep behavior disorder (iRBD) who agreed to undergo 123I-N-Ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl)-nortropane single photon emission tomography (FP-CIT SPECT) scanning.