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. 2014 Aug 15;99(12):E2652–E2660. doi: 10.1210/jc.2014-1953

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This article has been published under the terms of the Creative Commons Attribution License (CC-BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Copyright for this article is retained by the author(s). Author(s) grant(s) the Endocrine Society the exclusive right to publish the article and identify itself as the original publisher.

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Figure 1. — Plasma kisspeptin and serum hCG have distinct distributions when classified by gestation in women with singleton pregnancy who did not miscarry. A and B, In singleton pregnancy not resulting in miscarriage, the mean plasma levels of kisspeptin during the antenatal booking visit increased progressively with increasing gestation (A) and correlated significantly with gestational age (B). C and D, In singleton pregnancy not resulting in miscarriage, the mean serum hCG during the antenatal booking visit peaked at approximately 8 weeks' gestation and then decreased progressively with increasing gestation (C). Scatter plot of serum hCG vs gestational age is shown with a coarse Lowess plot (dotted line), denoting the overall trend in their relationship (D). Data are mean ± SD. ***, P < .0001.