Table 1

Specific to non-specific [123I]ß-CIT binding ratios (mean±SD) at baseline and 5-year follow-up

Baseline5-year follow-up
Hyposmic relatives
Normosmic relativesHyposmic relativesNormosmic relativesNo parkinsonismParkinsonism
N=35N=39N=34N=32N=4
Left striatum7.79±0.97.55±2.27.50±1.37.60±1.03.48±1.1
Right striatum7.77±1.07.53±2.17.43±1.57.47±1.13.29±0.4
Left putamen5.94±0.95.76±1.85.96±1.15.90±1.02.05±0.7
Right putamen5.90±0.95.74±1.75.71±1.25.74±1.11.88±0.1
Left caudate8.87±1.08.96±2.78.41±1.58.77±1.24.89±1.6
Right caudate8.91±1.08.90±2.68.48±1.78.70±1.34.89±0.7