Abstract
BackgroundEarly morning off (EMO) is a symptom experienced by patients with Parkinson's disease (PD) in any stage of the illness; however, few studies have explored its prevalence. Thus, the impact of EMO on patient Quality of Life (QOL) and caregiver burden is unclear. Materials and methodsA QOL questionnaire was administered to members of the Japan Parkinson's Disease Association and their caregivers via mail using the PD questionnaire — 8 (PDQ-8), which measures the appearance of EMO. The analysis assessed the responses from 2205 completed surveys. ResultsPatients who felt they had EMO amounted to 79.8%, with 37.8% of respondents stating that EMO was a daily occurrence. The prevalence of EMO increased as the Hoehn and Yahr stage increased, but was observed at a rate of 52.4% even in patients at Stage 1. The QOL of those with EMO was significantly reduced (p<0.0001), and the odds of caregivers feeling a sense of burden was higher for the group that experienced EMO even after adjusting for age of patient, age of caregivers, disease duration, relationship to patient, and Hoehn and Yahr stage. ConclusionThe prevalence of EMO in the survey results was high, significantly lowering the patients' QOL. Interestingly, EMO was also observed in the early stage of the disease. Since the presence of EMO impacts patients' QOL and caregiver burden, medical intervention and appropriate gathering of information for such intervention should be considered.
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