Table 1

Demographic characteristics and dopamine transporter (DAT) availability in patients with Parkinson’s disease

Patients with Parkinson’s disease (n=322)
Demographic characteristics
 Age at symptom onset, years64.14±9.72
 Female170 (52.8%)
 Disease duration, months17.13±15.34
 UPDRS-III23.26±10.50
 Clinical phenotype
 TD161 (50.0%)
 PIGD132 (41.0%)
 Indeterminate29 (9.0%)
 Vascular risk factors
 Hypertension127 (39.4%)
 Diabetes mellitus54 (16.8%)
 Dyslipidaemia58 (18.0%)
 BMI, kg/m2 23.40±2.78
Volumetric MRI measures
 CP volume, ratio of ICV×103 1.41±0.60
 GM volume, ratio of ICV×103 260.15±48.08
 Hippocampal volume, ratio of ICV×103 5.06±0.97
 LV volume, ratio of ICV×103 18.48±8.79
 WMH volume, ratio of ICV×103 0.47±1.01
 ICV, mL1584.68±347.00
Baseline DAT availability
 Anterior caudate2.11±0.68
 Posterior caudate1.42±0.57
 Anterior putamen2.23±0.65
 Posterior putamen1.38±0.47
 Ventral putamen1.47±0.42
 Ventral striatum2.14±0.61
  • Values are expressed as mean±SD or number (percentage).

  • CP, choroid plexus; GM, grey matter; ICV, intracranial volume; LV, lateral ventricle; PIGD, postural instability and gait difficulty; TD, tremor dominant; UPDRS-III, Unified Parkinson’s Disease Rating Scale Part III; WMH, white matter hyperintensity.