Abstract
Background
High quality prevalence studies are important in estimating the burden of disease in a population, thus informing priority setting, resource allocation, delivery and use of health services.
Objectives
This study was undertaken to systematically review the methods and results of previous prevalence studies of progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS), and make recommendations for future studies.
Methods
Two authors independently identified original articles that described the prevalence of PSP or CBS using several comprehensive and overlapping search strategies, assessed study quality and extracted relevant data. Descriptive and pooled analyses were performed as appropriate.
Results
Sixteen studies were identified in PSP and nine studies in CBS, with highly heterogeneous methods of case definition, identification and verification in identified studies. Few studies were deemed of necessary quality or methodological homogeneity to justify a full meta-analysis. In addition, few studies reported age-sex stratified results. The best three prevalence studies in PSP gave a pooled rate of 7.1 per 100,000 per year, while the pooled rate in two CBS studies was roughly three times lower at 2.3 per 100,000 per year. Based on crude rates there was little evidence to suggest clear sex differences in the prevalence of PSP or CBS, or that the prevalence of PSP had increased over time, but some evidence to suggest that prevalence may increase with increasing age.
Conclusion
Given the paucity of prevalence studies in PSP and CBS further high-quality prevalence studies are necessary.
High quality prevalence studies are important in estimating the burden of disease in a population, thus informing priority setting, resource allocation, delivery and use of health services.
Objectives
This study was undertaken to systematically review the methods and results of previous prevalence studies of progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS), and make recommendations for future studies.
Methods
Two authors independently identified original articles that described the prevalence of PSP or CBS using several comprehensive and overlapping search strategies, assessed study quality and extracted relevant data. Descriptive and pooled analyses were performed as appropriate.
Results
Sixteen studies were identified in PSP and nine studies in CBS, with highly heterogeneous methods of case definition, identification and verification in identified studies. Few studies were deemed of necessary quality or methodological homogeneity to justify a full meta-analysis. In addition, few studies reported age-sex stratified results. The best three prevalence studies in PSP gave a pooled rate of 7.1 per 100,000 per year, while the pooled rate in two CBS studies was roughly three times lower at 2.3 per 100,000 per year. Based on crude rates there was little evidence to suggest clear sex differences in the prevalence of PSP or CBS, or that the prevalence of PSP had increased over time, but some evidence to suggest that prevalence may increase with increasing age.
Conclusion
Given the paucity of prevalence studies in PSP and CBS further high-quality prevalence studies are necessary.
| Original language | English |
|---|---|
| Pages (from-to) | 604-613 |
| Number of pages | 10 |
| Journal | Movement Disorders Clinical Practice |
| Volume | 9 |
| Issue number | 5 |
| Early online date | 28 Jun 2022 |
| DOIs | |
| Publication status | Published - 12 Jul 2022 |
Keywords
- prevalence
- progressive supranuclear palsy
- corticobasal degeneration
- systematic review