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. 2013 Feb 15;8(2):e56189. doi: 10.1371/journal.pone.0056189

Figure 2. Restricted cubic spline analysis of the functional form of the association between the number of oocytes retrieved and the IVF outcomes after fresh ET.

Figure 2

A) Restricted cubic spline curve and 95% confidence levels between the number of oocytes retrieved and the log odds of clinical pregnancy; B) Restricted cubic spline curve and 95% confidence levels between the number of oocytes retrieved and the log odds of live birth; C) Proportion of having two good-quality embryos transferred by the number of oocytes retrieved; D) Proportion of patients younger than 35 years old by the number of oocytes retrieved.