ArticleJournal of patient-reported outcomes2026
Burden and disutility of sleep disturbance and early morning OFF symptoms in people with advancing Parkinson's disease: a vignette-based approach using the EQ-5D-5L.
Article in Journal of patient-reported outcomes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundParkinson’s disease (PD) is characterized by motor and non-motor symptoms that fluctuate as oral medication wears off, causing periods when symptoms return (“OFF” time) and periods of control (“ON” time). These fluctuations often occur at night and early morning. Sleep disturbance (SD) and early-morning OFF time (EMO) have been shown to decrease health-related quality of life (HRQoL) in people with PD (PwP). However, limited evidence exists on how these symptoms impact health state utility values (HSUVs) used in economic modeling. This study aimed to estimate the burden and disutility of SD and EMO in PwP through vignettes valued using the EQ-5D-5 L. METHODOLOGY: An online survey was completed by adults (≥ 30 years) with self-reported PD diagnosis for ≥ 5 years and ≥ 2 h/day of OFF time, on oral PD medications, and residing in the US or UK. The survey included EQ-5D-5 L and EQ-VAS assessments for 4 vignettes—No SD or EMO, SD (without EMO), EMO (without SD), and Both SD and EMO—plus questions exploring the burden of SD and EMO. EQ-5D-5 L responses were converted into US utility values to estimate HSUVs and the disutility of SD and EMO.
resultsSeventy-five individuals completed the survey; 52.00% were male, and 78.66% resided in the US. The average age was 64.32 years, with a mean time since diagnosis of 9.82 years and an average OFF time of 3.91 h/day. In the previous week, 96.00% and 98.67% of respondents reported experiencing SD and EMO, respectively. The presence of either SD (HSUV: 0.796) or EMO (HSUV: 0.701) alone resulted in lower EQ-5D-5 L utilities, with the presence of both valued least (HSUV: 0.528), compared with when both SD and EMO were absent (HSUV: 0.911). EQ-VAS scores ranged from 81.01 for no symptoms to 48.41 for both.
conclusionsSD and EMO impose a significant burden on PwP and decrease HSUVs. As SD and EMO were associated with significant disutility, they should be incorporated into economic models to comprehensively assess PD treatment benefits. Raising awareness among PwP and healthcare providers and prioritizing treatments that minimize SD and EMO can reduce their burden and improve HRQoL for PwP.
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