12 research outputs found

    A systematic review and meta-analysis of the prevalence of Parkinson's disease in lower to upper-middle-income countries.

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    Parkinson's disease (PD) is a common neurodegenerative disease that is a growing public health challenge. Estimates of the burden of PD have focused on data from high-income countries, with lower-income countries poorly described. We reviewed and examined the prevalence of PD reported by studies in low- to upper-middle-income countries. A systematic literature search was performed in the Medline/PubMed, Embase, LILACS, and Web of Science databases. Age group, sex, and geographic region were considered when analyzing the data. Of the 4327 assessed articles, 57 met the inclusion criteria for qualitative review, and 36 were included in the meta-analysis. Heterogeneity measures were high both as a whole and in each geographic region. Data analysis by geographic region showed that reported prevalence differed across regions, ranging from 49 per 100,000 (Sub-Saharan Africa) to 1081 per 100,000 (Latin America and the Caribbean). There was an increasing prevalence of PD with advancing age (per 100,000): 7 in 40-49 years, 158 in 50-59 years, 603 in 60-69 years, 1251 in 70-79 years, and 2181 in over the age of 80. The prevalence of PD in men and women was similar. There was a greater PD prevalence in populations with a higher 5-year GDP per capita and a higher life expectancy. Our findings suggest a higher prevalence of PD in lower and upper-middle-income countries than previously reported. Comparisons between regions are difficult, as the sociocultural differences and lack of methodological standardization hinder understanding key epidemiological data in varied populations

    Clinical evaluation of composite and compomer restorations in primary teeth: 24-month results

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    Purpose: This split-mouth, blind study evaluated the clinical performance of Dyract AP, F2000, and Heliomolar placed in primary molars of 30 children (mean age, 6 years and 2 months). Materials and methods: From a total of 79 restorations accomplished, 27 were built with Heliomolar (18 Class I, and 9 Class II), 30 were with F2000 (21 Class I and 9 Class II), and 22 were built with Dyract AP (14 Class I and 8 Class II). All of teeth restored had primary caries lesions. At 6, 12, 18 and 24 months, 60 restorations (75%) were evaluated using USPHS criteria for: color match (CM), marginal adaptation (MA), marginal discoloration (MD), anatomic form (AF) and secondary caries (SC) by three calibrated operators. The Alpha+ Bravo score percentage was considered as clinical success. The data were subjected to statistical analysis by Mann-Whitney and Kruskal-Wallis tests (p<0.05). Results: Heliomolar showed the smallest success clinical at 12 months for marginal adaptation and secondary caries, and at 18 months for marginal discoloration. Regarding color match and anatomic form, no significant differences were found among the groups at each evaluation period. When materials were compared, Heliomolar did not show a significant difference among the evaluated periods for any criteria, remaining with the lowest scores. Significant differences were observed at 12 months for F2000 (marginal adaptation), and at 24 months for Dyract AP (marginal discoloration and secondary caries). and for F2000 (color match and marginal discoloration). Conclusions: It was concluded that Dyract AP and F2000 showed the best clinical performance over 24 month-evaluations for marginal discoloration and secondary caries, and color match and marginal adaptation, respectively. The use of the resin composite Heliomolar in Class I/II restorations in primary molars should be carefully considered. (C) 2005 Elsevier Ltd. All rights reserved.34638138
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