The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Parkinson's disease sleep scale—validation of the revised version PDSS‐2
Abstract
Background: The previous Parkinson's disease sleep scale (PDSS) is a 15‐item visual analogue scale that assesses the profile of nocturnal disturbances in Parkinson's disease (PD) patients. Objective: To extend the scale so that it becomes a frequency measure scale with five categories and encompasses unmet needs such as restless legs syndrome, akinesia, pain, and sleep apnea. Methods: For validation of the PDSS‐2, PD patients' ratings and investigators' interviews were compared to ratings from a semistructured interview with a caregiver/partner, and to related scales. PDSS‐2 was repeated for test‐retest‐reliability after 1–3 days. Results: A total of 113 PD patients showed a mean (SD) total score of 16.5 (±8.9) (range: 2–40) indicating mild to moderate sleep disturbances. PDSS‐2 item‐total correlation for proving internal consistency was satisfactory (correlations >0.30). From a factor analysis, three subscales were derived: (1) “motor problems at night,” (2) “PD symptoms at night” and (3) “disturbed sleep.” The alpha coefficient for the total score was 0.73, for subscales 0.47 to 0.66. The test‐retest‐reliability intra‐class‐coefficient for the total score was 0.80, with 0.69 and 0.77 within the subscales. For discriminative validity, significant differences were found in the PDSS‐2 total score depending on CGI and Hoehn and Yahr severity levels. A comparison between caregivers' and patients' ratings was carried out. Conclusion: The PDSS‐2, with an extended spectrum of nocturnal disabilities and easier use for patients, is a reliable, valid, precise, and potentially treatment‐responsive tool for measuring sleep disorders in PD. © 2011 Movement Disorder Society
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Cites
The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research
Buysse, D. J., Reynolds, C. F., Monk, T. H., Berman, S. R., & Kupfer, D. J. (1989) · Psychiatry Research · doi:10.1016/0165-1781(89)90047-4 · Cited by 35,234
A New Method for Measuring Daytime Sleepiness: The Epworth Sleepiness Scale
Johns, M. W. (1991) · Sleep · doi:10.1093/sleep/14.6.540 · Cited by 17,364
The relevance of the Lewy body to the pathogenesis of idiopathic Parkinson's disease.
Gibb, W. R., & Lees, A. J. (1988) · Journal of Neurology, Neurosurgery & Psychiatry · doi:10.1136/jnnp.51.6.745 · Cited by 3,481
Cited by
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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
Self-citationCognitive Behavioral Therapy for Anxiety in Parkinsonʼs Disease: A Randomized Controlled Trial
Moonen, A. J. H., Mulders, A. E. P., Defebvre, L., Duits, A., Flinois, B., Köhler, S., Kuijf, M. L., Leterme, A., Servant, D., de Vugt, M., et al. (2021) · Movement Disorders · doi:10.1002/mds.28533 · Cited by 71
“55 Family history of Parkinsonʼs disease, n (%) 11 (23) 5 (21) 6 (25) 0.”
Sleep problems affect quality of life in Parkinson's disease along disease progression
Liguori, C., De Franco, V., Cerroni, R., Spanetta, M., Mercuri, N. B., Stefani, A., Pierantozzi, M., & Di Pucchio, A. (2021) · Sleep Medicine · doi:10.1016/j.sleep.2021.02.036 · Cited by 61
Boroojerdi, B., Ghaffari, R., Mahadevan, N., Markowitz, M., Melton, K., Morey, B., Otoul, C., Patel, S., Phillips, J., Sen-Gupta, E., et al. (2019) · Parkinsonism & Related Disorders · doi:10.1016/j.parkreldis.2018.11.024 · Cited by 43
Zhang, P., Huang, P., Li, Y., Du, J., Luo, N., He, Y., Liu, J., He, G., Cui, S., Zhang, W., et al. (2024) · Aging and disease · doi:10.14336/ad.2023.0518 · Cited by 30
Sleep and Circadian Rhythm Disorders in Parkinson’s Disease
Gros, P., & Videnovic, A. (2017) · Current Sleep Medicine Reports · doi:10.1007/s40675-017-0079-y · Cited by 29
Buchwitz, T. M., Maier, F., Greuel, A., Thieken, F., Steidel, K., Jakobs, V., & Eggers, C. (2021) · Frontiers in Psychology · doi:10.3389/fpsyg.2021.763350 · Cited by 15
“The aforementioned consequences of ISA (Prigatano, 1999; Koltai et al., 2001; Appelros et al., 2007; Turró-Garriga et al., 2013) might also be applicable in terms of ISAm even though no study did systematically examine their generalizability.”
BackgroundMoreau, C., Odou, P., Labreuche, J., Demailly, A., Touzet, G., Reyns, N., Gouges, B., Duhamel, A., Barthelemy, C., Lannoy, D., et al. (2025) · Nature Medicine · doi:10.1038/s41591-024-03428-2 · Cited by 15
Metadata
- Authors
- Trenkwalder, C., Kohnen, R., Högl, B., Metta, V., Sixel‐Döring, F., Frauscher, B., Hülsmann, J., Martinez‐Martin, P., & Chaudhuri, K. R.
- Venue
- Movement Disorders
- Publisher
- Wiley
- Published
- 2011-02-10
- Volume
- 26
- Issue
- 4
- Pages
- 644-652
- ISSN
- 0885-3185 (ISSN-L)
- 1531-8257
- OpenAlex
- W1977726180
- Cited by
- 418
- References
- 3
- FWCI
- 23.33
- Type
- journal article
- Language
- en
- Open access
- closed
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