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. Author manuscript; available in PMC: 2014 May 1.
Published in final edited form as: J Hand Surg Am. 2013 Apr 6;38(5):927–934.e5. doi: 10.1016/j.jhsa.2013.02.023

Figure 2.

Figure 2

Illustration of funnel plots, (A) A funnel plot with pooled estimate (solid line) and approximate point-wise 95% confidence limits showing no apparent publication bias. (B) A funnel plot suggesting publication bias in favor of larger studies and positive results.* * Adapted from Andrek JA, Keith SW, Leiby BE. Meta-analysis: A brief introduction. Clin Transl Sci. 2009; 2(5)374–378.