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. 2013 Dec;17(12):898–909. doi: 10.1089/gtmb.2013.0223

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Copyright 2013, Mary Ann Liebert, Inc.

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FIG. 2. — Meta-analysis of the association between interleukin-6 (IL-6) −634C/G polymorphism and bone mineral density (BMD) stratified according to different ethnicities (GG vs. CC+CG): (A) lumbar spine, (B) whole body, (C) femoral neck, (D) trochanter, (E) Ward's triangle. For each study, the estimate of mean BMD difference and its 95% confidence interval (95% CI) is plotted with a diamond (♦) and a horizontal line. The size of a box (■) is proportional to the weight that the study has in calculating the summary effect estimate (⋄). The center of the diamond indicates the weighted mean difference (WMD) and the ends of the diamond correspond to the 95% CI.