The Impact of PD Check-In, a Model for Supported Self-Managed Maintenance of Speech on the Quality of Life of People with Parkinson's Disease: A Phase 1 Study.

Quality of life (QoL) for people with Parkinson's Disease (PD) is diminished by speech and communication changes. The impact of PD Check-In, an intervention for supported self-managed maintenance of speech following LSVT LOUD ® , on QoL of people with PD was investigated. Sixteen people with PD and dysarthria completed LSVT LOUD followed by PD Check-Ins up until 24 months post-treatment. Self-rated QoL and voice handicap scales were used to determine the psychosocial and perceived impact of PD Check-In on the speech and voice of people with PD. The perceived impact of PD Check-In on speech and voice was also sought from 15 communication partners (CPs). A significant treatment effect for time was identified for the Dysarthria Impact Profile (DIP), Voice Handicap Index (VHI), and Voice Handicap Index-Partner (VHI-P) ( p < 0.05). There was no significant effect for time for the Parkinson's Disease Questionnaire (PDQ-39). Planned comparisons of timepoints for DIP, VHI, and VHI-P showed no significant differences ( p > 0.01). Comparison of perceived voice handicap by people with PD and CPs revealed no significant differences ( p > 0.01). The impact of PD Check-In on QoL of people with PD and CPs for 24 months post-LSVT-LOUD is unclear. Self-reported outcome measures alone do not fully capture changes in QoL in PD.