Parkinson’s Disease

Clinical Study

Psychosis Assessment in Early-Stage Parkinson’s Disease: Comparing Parkinson’s Psychosis Questionnaire with the Brief Psychiatric Rating Scale in a Portuguese Sample

Table 3

Correlations between PPQ total score and BPRS scores (total and subscale scores). Spearman’s rank correlation coefficient was used ( ).
PPQ total score
BPRS (total score)0.359;
BPRS (positive symptoms score)0.469;
BPRS (negative symptoms score)0.124;
BPRS (depression/anxiety score)0.205;
BPRS (mania/hostility score)−0.109;