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. Author manuscript; available in PMC: 2014 Sep 3.
Published in final edited form as: Fertil Steril. 2013 Jan 30;99(6):1610–1614. doi: 10.1016/j.fertnstert.2012.12.053

Figure 2.

Figure 2

(A) Less than efficiency curve of oocyte maturity based on serum hCG thresholds. The curves calculated the oocyte maturity below each hCG threshold beginning at <40 mIU/mL and continuing in increments of 10 mIU/mL. Thresholds values were set such that any value <75% (black dashed line) would be considered abnormal maturity rate. (B) Receiver operator characteristic (ROC) curve for the ability of serum hCG level to predict oocyte maturity. Area under the curve = 0.546.

Levy. Preretrieval serum hCG. Fertil Steril 2013.