Factors influencing the development of early- or late-onset Parkinson's disease in a cohort of South African patients

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dc.contributor.authorVan der Merwe, Celiaen_ZA
dc.contributor.authorHaylett, Williamen_ZA
dc.contributor.authorHarvey, Justinen_ZA
dc.contributor.authorLombard, Debbieen_ZA
dc.contributor.authorBardien, Sorayaen_ZA
dc.contributor.authorCarr, Jonathanen_ZA
dc.date.accessioned2013-07-03T08:19:00Z
dc.date.available2013-07-03T08:19:00Z
dc.date.issued2012-10-01
dc.descriptionCITATION: Van der Merwe, C. et al. 2012. Factors influencing the development of early- or late-onset Parkinson's disease in a cohort of South African patients. South African Medical Journal, 102(11):848-851, doi:10.7196/SAMJ.5879.
dc.descriptionThe original publication is available at http://www.samj.org.za
dc.description.abstractBackground. Neurodegenerative disorders such as Parkinson’s disease (PD) contribute significantly to global disease burden. PD can be categorised into early-onset PD (EOPD) with an age at onset (AAO) of ≤50 years and late-onset PD (LOPD) with an AAO of 50 years. Aims. To identify factors influencing EOPD and LOPD development in a group of patients in South Africa (SA). Methods. A total of 397 unrelated PD patients were recruited from the Movement Disorders Clinic at Tygerberg Hospital and via the Parkinson’s Association of SA. Patient demographic and environmental data were recorded and associations with PD onset (EOPD v. LOPD) were analysed with a Pearson’s Chi-squared test. The English- and Afrikaans-speaking (Afrikaner) white patients were analysed separately. Results. Logistic regression analysis showed that ethnicity (p<0.001) and family history (p=0.004) were independently associated with AAO of PD. Average AAO was younger in black, coloured and Afrikaner patients than English-speaking white patients. A positive family history of PD, seen in 31.1% of LOPD patients, was associated with a younger AAO in the study population. Conclusions. These associations may be attributed to specific genetic and/or environmental risk factors that increase PD susceptibility and influence the clinical course of the disorder. More studies on PD in the unique SA populations are required to provide novel insights into mechanisms underlying this debilitating condition.
dc.description.urihttp://www.samj.org.za/index.php/samj/article/view/5879
dc.description.versionPublisher's version
dc.format.extent7 pages
dc.identifier.citationVan der Merwe, C. et al. 2012. Factors influencing the development of early- or late-onset Parkinson's disease in a cohort of South African patients. South African Medical Journal, 102(11):848-851, doi:10.7196/SAMJ.5879.
dc.identifier.issn2078-5135 (online)
dc.identifier.issn0256-9574 (print)
dc.identifier.otherdoi:10.7196/SAMJ.5879
dc.identifier.urihttp://hdl.handle.net/10019.1/81638
dc.language.isoen
dc.publisherHealth & Medical Publishing Group
dc.rights.holderAuthors retain copyright
dc.subjectParkinson’s disease -- South Africaen_ZA
dc.titleFactors influencing the development of early- or late-onset Parkinson's disease in a cohort of South African patientsen_ZA
dc.typeArticle
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