Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysis

Objective This study aims to explore whether the human chorionic gonadotropin (hCG) doubling rate every 48 h (HDR) predicts early pregnancy outcomes in women with pregnancy loss.Methods The early clinical pregnancy outcomes in 257 women with a history of pregnancy loss were analyzed in this retrospe...

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Main Authors: Xiaoping Wang, Fangxiang Mu, Qiliang Jian, Fang Wang
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:The Journal of Maternal-Fetal & Neonatal Medicine
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Online Access:https://www.tandfonline.com/doi/10.1080/14767058.2025.2508902
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author Xiaoping Wang
Fangxiang Mu
Qiliang Jian
Fang Wang
author_facet Xiaoping Wang
Fangxiang Mu
Qiliang Jian
Fang Wang
author_sort Xiaoping Wang
collection DOAJ
description Objective This study aims to explore whether the human chorionic gonadotropin (hCG) doubling rate every 48 h (HDR) predicts early pregnancy outcomes in women with pregnancy loss.Methods The early clinical pregnancy outcomes in 257 women with a history of pregnancy loss were analyzed in this retrospective study. The optimal cutoff value of HDR was determined by the receiver operating characteristic (ROC) curve and the Youden index. The primary outcome was pregnancy loss occurring before 12 weeks of gestation.Results A total of 257 patients were enrolled in this study. According to the pregnancy outcome at 12 weeks of gestation, the patients were divided into ongoing pregnancy (N = 198) and early pregnancy loss (EPL) groups (N = 59). In the total study population, the HDRs in ongoing pregnancy group were significantly higher than those in EPL group at specific intervals of hCG levels: 150–400 mIU/ml, 400–800 mIU/ml, and 3200–6400 mIU/ml. The corresponding thresholds were 1.855, 2.219, and 1.730, respectively (p < 0.05). A similar result was observed among patients with recurrent pregnancy loss (RPL) across the intervals of 400–800 mIU/ml, 800–1600 mIU/ml, 3200–6400 mIU/ml, and 20000–30000 mIU/ml, with corresponding thresholds of 2.219, 1.812, 1.730, and 1.450, respectively.Conclusions HDR may serve as an evaluative tool for predicting the risk of EPL in women with pregnancy loss. Differences in the intervals showing predictive value between women with and without RPL imply that individualized interpretation of HDR may be warranted in these subgroups. However, given the limited sample size, especially within the EPL group, these findings should be interpreted with caution.
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spelling doaj-art-0a137f53dfba4e2181e81edf0de151c42025-08-20T03:12:27ZengTaylor & Francis GroupThe Journal of Maternal-Fetal & Neonatal Medicine1476-70581476-49542025-12-0138110.1080/14767058.2025.2508902Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysisXiaoping Wang0Fangxiang Mu1Qiliang Jian2Fang Wang3Department of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, ChinaDepartment of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, ChinaDepartment of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, ChinaDepartment of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, ChinaObjective This study aims to explore whether the human chorionic gonadotropin (hCG) doubling rate every 48 h (HDR) predicts early pregnancy outcomes in women with pregnancy loss.Methods The early clinical pregnancy outcomes in 257 women with a history of pregnancy loss were analyzed in this retrospective study. The optimal cutoff value of HDR was determined by the receiver operating characteristic (ROC) curve and the Youden index. The primary outcome was pregnancy loss occurring before 12 weeks of gestation.Results A total of 257 patients were enrolled in this study. According to the pregnancy outcome at 12 weeks of gestation, the patients were divided into ongoing pregnancy (N = 198) and early pregnancy loss (EPL) groups (N = 59). In the total study population, the HDRs in ongoing pregnancy group were significantly higher than those in EPL group at specific intervals of hCG levels: 150–400 mIU/ml, 400–800 mIU/ml, and 3200–6400 mIU/ml. The corresponding thresholds were 1.855, 2.219, and 1.730, respectively (p < 0.05). A similar result was observed among patients with recurrent pregnancy loss (RPL) across the intervals of 400–800 mIU/ml, 800–1600 mIU/ml, 3200–6400 mIU/ml, and 20000–30000 mIU/ml, with corresponding thresholds of 2.219, 1.812, 1.730, and 1.450, respectively.Conclusions HDR may serve as an evaluative tool for predicting the risk of EPL in women with pregnancy loss. Differences in the intervals showing predictive value between women with and without RPL imply that individualized interpretation of HDR may be warranted in these subgroups. However, given the limited sample size, especially within the EPL group, these findings should be interpreted with caution.https://www.tandfonline.com/doi/10.1080/14767058.2025.2508902Human chorionic gonadotropinearly pregnancy outcomepregnancy losshCG doubling ratecutoff value
spellingShingle Xiaoping Wang
Fangxiang Mu
Qiliang Jian
Fang Wang
Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysis
The Journal of Maternal-Fetal & Neonatal Medicine
Human chorionic gonadotropin
early pregnancy outcome
pregnancy loss
hCG doubling rate
cutoff value
title Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysis
title_full Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysis
title_fullStr Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysis
title_full_unstemmed Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysis
title_short Role of doubling rate of hCG in predicting early pregnancy loss: a retrospective analysis
title_sort role of doubling rate of hcg in predicting early pregnancy loss a retrospective analysis
topic Human chorionic gonadotropin
early pregnancy outcome
pregnancy loss
hCG doubling rate
cutoff value
url https://www.tandfonline.com/doi/10.1080/14767058.2025.2508902
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AT fangxiangmu roleofdoublingrateofhcginpredictingearlypregnancylossaretrospectiveanalysis
AT qiliangjian roleofdoublingrateofhcginpredictingearlypregnancylossaretrospectiveanalysis
AT fangwang roleofdoublingrateofhcginpredictingearlypregnancylossaretrospectiveanalysis