The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.
Sleep problems affect quality of life in Parkinson's disease along disease progression
Abstract
OBJECTIVES Non-motor symptoms (NMS) frequently impact health-related quality of life (HRQoL) in patients with Parkinson's Disease (PD). Sleep problems represent one of the main NMS complained by PD patients. In this observation study, sleep problems measured by Parkinson's Disease Sleep Scale - 2nd version (PDSS-2), and HRQoL measured by Parkinson's Disease Questionnaire-39 (PDQ39) were quantified in patients with PD ranging from mild to moderate-advanced disease stages, and correlated to motor impairment and anti-PD therapy. METHODS We included idiopathic PD patients who underwent PDSS-2 and PDQ39. Moreover, we assessed patients' motor symptoms by rating the Unified Parkinson's Disease Rating Scale (UPDRS) - III section (motor examination), patients' PD status following H&Y stage, and levodopa equivalent daily dose (LEDD). RESULTS One-hundred and fifty-four patients with PD were included and distributed for H&Y stage. PDSS-2 and PDQ39 total and sub-items scores significantly increased with the H&Y stage. PDSS-2 total score significantly correlated with PDQ39 total score (γ = 0.63, P < 0.01). Finally, distributing PD patients according to the PDSS-2 cut-off for detecting sleep disturbances, we found in poor sleepers (n = 58) higher PDQ39 scores than good sleepers (n = 89). CONCLUSIONS Sleep problems are very common in patients with PD and severely impact on HRQoL. Sleep impairment and low HRQoL occur from the early stages of the disease and deteriorate along disease progression. Further studies investigating sleep and quality of life should be planned for targeting sleep improvement to increase HRQoL and possibly reduce motor impairment.
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Diagnostic Criteria for Parkinson Disease
Gelb, D. J., Oliver, E., & Gilman, S. (1999) · Archives of Neurology · doi:10.1001/archneur.56.1.33 · Cited by 2,822
Barone, P., Antonini, A., Colosimo, C., Marconi, R., Morgante, L., Avarello, T. P., Bottacchi, E., Cannas, A., Ceravolo, G., Ceravolo, R., et al. (2009) · Movement Disorders · doi:10.1002/mds.22643 · Cited by 1,445
JENKINSON, C., FITZPATRICK, R., PETO, V., GREENHALL, R., & HYMAN, N. (1997) · Age and Ageing · doi:10.1093/ageing/26.5.353 · Cited by 1,321
Martinez‐Martin, P., Rodriguez‐Blazquez, C., Kurtis, M. M., Chaudhuri, K. R., & on Behalf of the NMSS Validation Group (2011) · Movement Disorders · doi:10.1002/mds.23462 · Cited by 989
Quade, D. (1967) · Journal of the American Statistical Association · doi:10.1080/01621459.1967.10500925 · Cited by 543
Parkinson's disease sleep scale—validation of the revised version PDSS‐2
Trenkwalder, C., Kohnen, R., Högl, B., Metta, V., Sixel‐Döring, F., Frauscher, B., Hülsmann, J., Martinez‐Martin, P., & Chaudhuri, K. R. (2011) · Movement Disorders · doi:10.1002/mds.23476 · Cited by 418
Determinants of health-related quality of life in Parkinson’s disease: A systematic review
Soh, S.-E., Morris, M. E., & McGinley, J. L. (2011) · Parkinsonism & Related Disorders · doi:10.1016/j.parkreldis.2010.08.012 · Cited by 386
Müller, B., Aßmus, J., Herlofson, K., Larsen, J. P., & Tysnes, O. (2013) · Parkinsonism & Related Disorders · doi:10.1016/j.parkreldis.2013.07.010 · Cited by 262
Sex differences in movement disorders
Meoni, S., Macerollo, A., & Moro, E. (2020) · Nature Reviews Neurology · doi:10.1038/s41582-019-0294-x · Cited by 207
The importance of non-motor disturbances to quality of life in Parkinson's disease
Martinez-Martin, P. (2011) · Journal of the Neurological Sciences · doi:10.1016/j.jns.2011.05.006 · Cited by 160
Cited by
Pagano, G., Monnet, A., Reyes, A., Ribba, B., Svoboda, H., Kustermann, T., Simuni, T., Postuma, R. B., Pavese, N., Stocchi, F., et al. (2024) · Nature Medicine · doi:10.1038/s41591-024-03270-6 · Cited by 74
Liu, X., Chen, W., Wang, C., Liu, W., Hayashi, T., Mizuno, K., Hattori, S., Fujisaki, H., & Ikejima, T. (2021) · Physiology & Behavior · doi:10.1016/j.physbeh.2021.113593 · Cited by 49
Frequency of Non-motor Symptoms in Parkinson's Patients With Motor Fluctuations
Fernandes, M., Pierantozzi, M., Stefani, A., Cattaneo, C., Bonizzoni, E., Cerroni, R., Mercuri, N. B., & Liguori, C. (2021) · Frontiers in Neurology · doi:10.3389/fneur.2021.678373 · Cited by 42
Self-citationScanga, A., Lafontaine, A., & Kamińska, M. (2023) · Journal of Clinical Sleep Medicine · doi:10.5664/jcsm.10450 · Cited by 42
Insomnia in Parkinson’s Disease: Causes, Consequences, and Therapeutic Approaches
Duan, X., Liu, H., Hu, X., Yu, Q., Kuang, G., Liu, L., Zhang, S., Wang, X., Li, J., Yu, D., et al. (2024) · Molecular Neurobiology · doi:10.1007/s12035-024-04400-4 · Cited by 40
Metadata
- Authors
- Liguori, C., De Franco, V., Cerroni, R., Spanetta, M., Mercuri, N. B., Stefani, A., Pierantozzi, M., & Di Pucchio, A.
- Affiliations
- University of Rome Tor Vergata (IT)
- Corresponding author
- Liguori, Claudio
- Venue
- Sleep Medicine
- Publisher
- Elsevier BV
- Published
- 2021-05
- Volume
- 81
- Pages
- 307-311
- ISSN
- 1389-9457 (ISSN-L)
- OpenAlex
- W3131429994
- Semantic Scholar
- d2d8c45aa10237ee659496ec1328bc9f6675a988
- Cited by
- 61
- References
- 24
- Citations by year
- 2026: 11 · 2025: 16 · 2024: 17 · 2023: 10 · 2022: 4 · 2021: 3
- FWCI
- 4.51
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- doi.org/10.15223/policy-017 (stm-asf)
- doi.org/10.15223/policy-037 (stm-asf)
- doi.org/10.15223/policy-012 (stm-asf)
- doi.org/10.15223/policy-029 (stm-asf)
- doi.org/10.15223/policy-004 (stm-asf)
- Locations
- Sleep Medicine (publishedVersion)
- PubMed (publishedVersion)
- Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion)
- Funders
- AbbVie
- Topics
- Health Sciences › Medicine › Clinical Neurology › Parkinson's Disease Mechanisms and Treatments
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Health Sciences › Medicine › Clinical Neurology › Deep Brain Stimulation and Movement Disorders
- Keywords
- Parkinson's disease, sleep disorders, health-related quality of life, non-motor symptoms, disease progression, Parkinson's Disease Sleep Scale, Parkinson's Disease Questionnaire, motor impairment, levodopa equivalent daily dose
- MeSH terms
- Humans, Parkinson Disease, Quality of Life, Surveys and Questionnaires, Sleep Wake Disorders, Disease Progression
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- The paper
- Liguori, C., De Franco, V., Cerroni, R., Spanetta, M., Mercuri, N. B., Stefani, A., Pierantozzi, M., & Di Pucchio, A. (2021). Sleep problems affect quality of life in Parkinson's disease along disease progression. Sleep Medicine. https://doi.org/10.1016/j.sleep.2021.02.036
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