The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-management
Abstract Background Maternal hypertension and hyperglycemia are closely related but have distinct impacts on fetal growth and are managed independently. How the interdependence of blood pressure (BP) and glucose levels quantitatively influences risk patterns for abnormal fetal growth and neonatal co...
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2025-03-01
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| Online Access: | https://doi.org/10.1186/s12916-025-03990-7 |
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| author | Lijuan Lv Jingbo Yang Linjie Li Chuanyi Huang Huihua Shi Yiwen Fang Lushu Zuo Ting Liu Hongli Duan Jiying Wen Qing Yang Amanda Henry Cha Han Aihua Yin Xin Zhou |
| author_facet | Lijuan Lv Jingbo Yang Linjie Li Chuanyi Huang Huihua Shi Yiwen Fang Lushu Zuo Ting Liu Hongli Duan Jiying Wen Qing Yang Amanda Henry Cha Han Aihua Yin Xin Zhou |
| author_sort | Lijuan Lv |
| collection | DOAJ |
| description | Abstract Background Maternal hypertension and hyperglycemia are closely related but have distinct impacts on fetal growth and are managed independently. How the interdependence of blood pressure (BP) and glucose levels quantitatively influences risk patterns for abnormal fetal growth and neonatal complications remains unexplored. Methods Maternal BP and fasting plasma glucose (FPG) levels were measured between 20 and 28 weeks of gestation in a cohort including 56,881 singleton pregnancies. Linear and quantile regression analyses were used to evaluate the relationship between BP and FPG. We examined the dose–response relationships between BP and FPG with small-for-gestational age (SGA) and large-for-gestational age (LGA) by using restricted cubic spline (RCS) curves. Additionally, multivariable fractional polynomial interaction (MFPI) analysis was conducted to assess the effects of higher versus lower BP levels across the full range of FPG levels. Heatmaps were created to visualize the contributions of BP and FPG by categorizing them into ordered groups. Results Quantile regression revealed consistent positive correlations between mean arterial pressure (MAP) and FPG, with a steeper increase in MAP coefficients above the 0.5 quantile of FPG. MAP had a non-linear positive association with SGA risk, while FPG showed a non-linear negative association. Heatmaps revealed the highest SGA risk with high BP (MAP ≥ 85 mmHg)/low glucose (< 85 mg/dL) combinations and the lowest risk with low BP (MAP < 85 mmHg)/high glucose (≥ 85 mg/dL), with equivalent risk at both high BP/high glucose and low BP/low glucose. In hypertensive patients, SGA risk worsened continuously as glucose levels decreased. LGA risk was not influenced by BP levels. Neonatal complications decreased by approximately 47% as MAP declined from the highest to lowest category, and by about 17% with decreasing glucose levels. Conclusions Based on a large pregnancy cohort in China, this study revealed an interdependent association between maternal BP and glucose levels and their combined impact on the risk of SGA. It provided quantitative evidence of how this interdependence shapes the transition of risk patterns for SGA, neonatal complications, and LGA. These findings underscore the need for an integrated approach to co-managing BP and glucose levels during pregnancy. Graphical Abstract |
| format | Article |
| id | doaj-art-ccd80ec1b4dd4a75adb2bfb784effb22 |
| institution | DOAJ |
| issn | 1741-7015 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | BMC |
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| series | BMC Medicine |
| spelling | doaj-art-ccd80ec1b4dd4a75adb2bfb784effb222025-08-20T03:01:41ZengBMCBMC Medicine1741-70152025-03-0123111310.1186/s12916-025-03990-7The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-managementLijuan Lv0Jingbo Yang1Linjie Li2Chuanyi Huang3Huihua Shi4Yiwen Fang5Lushu Zuo6Ting Liu7Hongli Duan8Jiying Wen9Qing Yang10Amanda Henry11Cha Han12Aihua Yin13Xin Zhou14Medical Genetic Center, Department of Obstetrics, Guangdong Women and Children HospitalDepartment of Cardiology, Tianjin Medical University General HospitalDepartment of Cardiology, Tianjin Medical University General HospitalDepartment of Cardiology, Tianjin Medical University General HospitalDepartment of Cardiology, Tianjin Medical University General HospitalDepartment of Cardiology, Tianjin Medical University General HospitalDepartment of Cardiology, Tianjin Medical University General HospitalDepartment of Cardiology, Tianjin Medical University General HospitalMedical Genetic Center, Department of Obstetrics, Guangdong Women and Children HospitalMedical Genetic Center, Department of Obstetrics, Guangdong Women and Children HospitalDepartment of Cardiology, Tianjin Medical University General HospitalDiscipline of Women’S Health, School of Clinical Medicine, UNSW Medicine and Health, University of New South WalesDepartment of Gynecology and Obstetrics, Tianjin Medical University General HospitalMedical Genetic Center, Department of Obstetrics, Guangdong Women and Children HospitalDepartment of Cardiology, Tianjin Medical University General HospitalAbstract Background Maternal hypertension and hyperglycemia are closely related but have distinct impacts on fetal growth and are managed independently. How the interdependence of blood pressure (BP) and glucose levels quantitatively influences risk patterns for abnormal fetal growth and neonatal complications remains unexplored. Methods Maternal BP and fasting plasma glucose (FPG) levels were measured between 20 and 28 weeks of gestation in a cohort including 56,881 singleton pregnancies. Linear and quantile regression analyses were used to evaluate the relationship between BP and FPG. We examined the dose–response relationships between BP and FPG with small-for-gestational age (SGA) and large-for-gestational age (LGA) by using restricted cubic spline (RCS) curves. Additionally, multivariable fractional polynomial interaction (MFPI) analysis was conducted to assess the effects of higher versus lower BP levels across the full range of FPG levels. Heatmaps were created to visualize the contributions of BP and FPG by categorizing them into ordered groups. Results Quantile regression revealed consistent positive correlations between mean arterial pressure (MAP) and FPG, with a steeper increase in MAP coefficients above the 0.5 quantile of FPG. MAP had a non-linear positive association with SGA risk, while FPG showed a non-linear negative association. Heatmaps revealed the highest SGA risk with high BP (MAP ≥ 85 mmHg)/low glucose (< 85 mg/dL) combinations and the lowest risk with low BP (MAP < 85 mmHg)/high glucose (≥ 85 mg/dL), with equivalent risk at both high BP/high glucose and low BP/low glucose. In hypertensive patients, SGA risk worsened continuously as glucose levels decreased. LGA risk was not influenced by BP levels. Neonatal complications decreased by approximately 47% as MAP declined from the highest to lowest category, and by about 17% with decreasing glucose levels. Conclusions Based on a large pregnancy cohort in China, this study revealed an interdependent association between maternal BP and glucose levels and their combined impact on the risk of SGA. It provided quantitative evidence of how this interdependence shapes the transition of risk patterns for SGA, neonatal complications, and LGA. These findings underscore the need for an integrated approach to co-managing BP and glucose levels during pregnancy. Graphical Abstracthttps://doi.org/10.1186/s12916-025-03990-7Blood pressureFasting plasma glucoseHypertensive disorders in pregnancyGestational diabetesSmall-for-gestational age infantsLarge-for-gestational-age infants |
| spellingShingle | Lijuan Lv Jingbo Yang Linjie Li Chuanyi Huang Huihua Shi Yiwen Fang Lushu Zuo Ting Liu Hongli Duan Jiying Wen Qing Yang Amanda Henry Cha Han Aihua Yin Xin Zhou The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-management BMC Medicine Blood pressure Fasting plasma glucose Hypertensive disorders in pregnancy Gestational diabetes Small-for-gestational age infants Large-for-gestational-age infants |
| title | The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-management |
| title_full | The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-management |
| title_fullStr | The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-management |
| title_full_unstemmed | The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-management |
| title_short | The interdependence of mid-trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes: implications for risk–benefit assessment and co-management |
| title_sort | interdependence of mid trimester blood pressure and glucose levels in shaping fetal growth and neonatal outcomes implications for risk benefit assessment and co management |
| topic | Blood pressure Fasting plasma glucose Hypertensive disorders in pregnancy Gestational diabetes Small-for-gestational age infants Large-for-gestational-age infants |
| url | https://doi.org/10.1186/s12916-025-03990-7 |
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