Clinical Study
Nonmotor Symptoms Groups in Parkinson's Disease Patients: Results of a Pilot, Exploratory Study
Table 2
Results of the exploratory factor analysis.
| Items | Factor 1 | Factor 2 | Factor 3 | Factor 4 | Factor 5 |
| Sleep quality (PDSS) | 0.789 | | | | | Noct. restlessness (PDSS) | 0.839 | | | | | Off-related problems (PDSS) | 0.636 | | | | | Daytime somnolence (PDSS) | 0.538 | | | | | Nocturia (PDSS) | | 0.839 | | | | Noct. Activity (actigraphy) | | 0.654 | | | | GU symptoms (NMSQ) | | | 0.935 | | | GI Motility disorders (NMSQ) | | | 0.939 | | | Noct. Psychosis (PDSS) | | | | 0.572 | | Sialorrhea (UPDRS) | | | | 0.809 | | Dysphagia (UPDRS) | | | | 0.668 | | MADRS | | | | | 0.911 | NPS symptoms (NMSQ) | | | | | 0.866 | Variance explained by factor | 27.6 | 13.2 | 11.9 | 9.8 | 8.0 |
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GU: genitourinary; GI: gastrointestinal; MADRS: montgomery-Asberg depression Rating scale; NPS: neuropsychiatric symptoms.
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