However, although this meta-analysis included both cohort and case control studies, data on subgroup analysis were not available.
Although this meta-analysis cannot fully remove that uncertainty, it confirms that the risk of cancer is not increased in middle aged patients.
Third, although this meta-analysis has revealed miR-210 as a prognostic biomarker, only one study mentioned it as an independent predictor.
Although this meta-analysis included nearly 5000 patients, some trials were small, of which a large number were powered only for a specific angiographic endpoint, mainly late lumen loss.
Although this meta-analysis estimated the pooled effects of PM2.5 concentrations on preterm birth risks, the limited number of studies restricted us from further exploring the effects of the chemical components of PM2.5 on preterm birth.
This is lower than a cumulative sensitivity of 79% and specificity of 91% found in a recent meta-analysis [ 4], although this meta-analysis mainly consisted of systemic infections.
In a similar meta-analysis, Zhao et al. (2013) concluded that shorter telomere length is associated with an increased risk of type 2 diabetes, although this meta-analysis did not distinguish between prospective and retrospective studies.
Although this meta-analysis was based on published results, we were able to generate results similar to those of a previously published combined analysis of a subset of the cohort studies examined here.
Although this meta-analysis indicates only low heterogeneity, diversity between studies, for example due to different populations (e.g., countries, age groups), inclusion and exclusion criteria (e.g., more severe patients), study designs (e.g., inadequate follow-up of lost patients), statistical methods used, and various sources of bias, is still an important issue.
Although the findings in this meta-analysis give support for physical activity in the prevention of GDM, there are some limitations.
Second, although the results of this meta-analysis were fairly consistent across the included studies, there were significant differences in the diagnoses of the patients and the study protocols, especially in the doses of fluconazole used.
