Rheumatology international
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Meta Analysis
Meta-analysis of TNF-α promoter -308A/G polymorphism and SLE susceptibility in Asian populations.
The aim of this study was to summarize results on the association of tumor necrosis factor-α (TNF-α) promoter -308A/G polymorphism with systemic lupus erythematosus (SLE) susceptibility in Asian populations by using the meta-analysis. We searched all the publications about the association between TNF-α promoter -308A/G polymorphism and SLE in Asian populations from PubMed, Elsevier Science Direct, Chinese Biomedical Literature Database (CBM), Chinese National Knowledge Infrastructure (CNKI), and Wanfang (Chinese). Meta-analysis was performed for genotypes AA versus GG, GA versus GG, AA versus GG + GA, GA + AA versus GG, and A allele versus G allele in a fixed/random effect model. ⋯ When analyses were restricted to more ethnically homogeneous populations, similar result was found in Chinese population (OR = 1.59, 95%CI = 1.12-2.26, P = 0.009). But the association between TNF-α promoter -308 polymorphism and SLE was not observed when examining the contrast of G/A + A/A versus G/G, A/A versus A/G + G/G, A/A versus G/G, and G/A versus G/G. This meta-analysis demonstrates the association between TNF-α promoter -308A/G polymorphism and SLE in Asian populations, especially in Chinese population.
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Review Meta Analysis
Absolute risk reduction in osteoporosis: assessing treatment efficacy by number needed to treat.
Postmenopausal osteoporosis is a chronic condition due to decreased bone mass, leading to reduced bone strength and increased fracture risk. Currently available pharmacological treatments include antiresorptive agents (bisphosphonates and raloxifene) and bone-forming agents (strontium ranelate and two different parathyroid peptides). Comparison via reduction in relative risk of fracture may produce artificially high reductions in fracture risk for some agents. ⋯ NNT values for hip fracture over 3 years range from 48 for strontium ranelate to 91 for three of the bisphosphonates. Our analysis indicates that the bone-forming agent strontium ranelate may have the lowest NNT for the prevention of both vertebral and hip fracture. Responder analysis may enable translation of clinical trial results into guidance for routine clinical practice by indicating the amount of effort needed to prevent the same event in comparable populations with different treatment options.
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Review Meta Analysis
Association between the rs7574865 polymorphism of STAT4 and rheumatoid arthritis: a meta-analysis.
The aim of this study was to determine whether the rs7574865 polymorphism of STAT4 (signal transducers and activators of transcription 4) confers susceptibility to rheumatoid arthritis (RA) in populations with different ethnicities. A meta-analysis was conducted on the T allele of the STAT4 rs7574865 polymorphism in 15 studies containing 16,088 RA patients and 16,509 normal control subjects. Meta-analysis revealed an association between RA and the STAT4 rs7574865 T allele in all subjects (OR = 1.271, 95% CI = 1.197-1.350, P < 0.001). ⋯ Stratification of RA patients according to the presence of anti-CCP antibody revealed a statistically significant association between the T allele and RA in both anti-CCP-positive and -negative RA patients versus controls. Europeans had the lowest (21.4%) and Asians had the highest (32.0%) prevalence of the T allele among the populations studied. In conclusion, this meta-analysis confirms that the STAT4 rs7574865 polymorphism is associated with RA susceptibility in different ethnic groups, and that its prevalence is ethnicity dependent.