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Fig. 7 | BMC Endocrine Disorders

Fig. 7

From: Associations of serum low-density lipoprotein and systolic blood pressure levels with type 2 diabetic patients with and without peripheral neuropathy: systemic review, meta-analysis and meta-regression analysis of observational studies

Fig. 7

Contour-enhanced funnel plots for the detection of a publication bias of the LDL (a) and SBP (b). All enrolled 16 studies represent by each point for the specified association, individually. The size of each circle is proportional to the percentage weight that each study contributed to the standardized mean difference (SDM). These plots indicate that some studies were in significant areas where P < 0.01 (solid lines). Solid triangles refer to included studies and X’s refer to filled studies. The vertical axis represents standard error of logarithmic HR and the horizontal axis represents the SDM limits. CIs, confidence intervals; HR, hazard ratio

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