Research Article

Focus on Depression in Parkinson’s Disease: A Delphi Consensus of Experts in Psychiatry, Neurology, and Geriatrics

Table 1

Section I: aetiology and risk factors for depression in PD patients.

StatementConsensus agreementConsensus disagreementNo consensus

S1Depression is a nonmotor and premotor symptom of PD.

S2Depression is more frequent in people who will later suffer from PD; thereby, it can be considered a risk factor.

S3Decreased levels of DA, serotonin, and acetylcholine are depression trigger factors in PD.

S4Depression in PD is not more frequently related to any motor phenotype.-

S5Depression in PD is associated with more severe motor symptoms.

S6Female gender and older age correlate with an increased risk of PD-related depression.

S7Depression in PD is associated with a higher prevalence of nonmotor symptoms.

S8Having suffered from cancer and not being married correlate with an increased risk of PD-related depression.-

S9Impaired basal ganglia limbic system and connections with the orbitofrontal cortex are involved in the pathophysiology of PD-related depression.

S10The habenula is an amine brain integrative area, and there are data supporting that its impaired function could contribute to depression in early premotor PD stages.

PD, Parkinson’s disease; DA, dopamine.