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. Author manuscript; available in PMC: 2018 Sep 19.
Published in final edited form as: J Clin Anesth. 2017 Jan 10;37:154–158. doi: 10.1016/j.jclinane.2016.11.010

Figure 1:

Figure 1:

The rate (in %) of difficulty (white circles, dotted line) and failure (black diamonds, continuous line) of epidural catheter placement as a function of body mass index (BMI, in kg/m2). Regression analysis of binned data in BMI intervals of 5 revealed a significant linear relationship and correlations of BMI vs. difficulty and failure, respectively. All values are given ± standard error. For easier visibility, standard errors are displayed as capped horizontal bars slightly above the mean symbols. * P < 0.05 (two-tailed).