期刊
ENDOCRINE
卷 74, 期 2, 页码 290-299出版社
SPRINGER
DOI: 10.1007/s12020-021-02787-x
关键词
Continuous glucose monitoring; Gestational diabetes mellitus; Patterns of glycemic signatures; Nighttime glucose level; Birth weight
资金
- National Natural Science Foundation of China [81803251]
- Department of Science and Technology of Guangdong Province, China [2017A030313756]
- Guangzhou Municipal Health Commission [20191A031002]
This study aimed to identify specific glucose metrics from maternal continuous glucose monitoring data associated with a higher percentile of offspring birth weight. Results showed that maternal nighttime mean glucose level and HSSV were significantly associated with an increase in birth weight percentile, while no associations were found for other glucose metrics.
Purpose To identify the specific glucose metrics derived from maternal continuous glucose monitoring (CGM) data, which were associated with a higher percentile of offspring birth weight. Methods In this cohort study, we recruited singleton pregnant women with GDM who underwent CGM for 5-14 days at a mean of 28.8 gestational weeks between Jan 2017 and Nov 2018. Commonly used single summary glucose metrics of glucose exposure (including mean 24-h, daytime, and nighttime glucose level) and variability (including J-index and mean amplitude of glycaemic excursions) were derived from CGM data. A novel comprehensive glucose metric-hours per-day spent in a severe variability glucose mode (HSSV)-was identified using the spectral clustering method, which reflects both glucose level and variability. Multiple linear regression models were used to estimate the associations of sex- and gestational age-adjusted birth weight percentile with CGM parameters. Results Ninety-seven women comprising 127,279 glucose measurements were included. Each 1-SD increase in maternal nighttime mean glucose level and HSSV was associated with 6.0 (95% CI 0.4, 11.5) and 6.3 (95% CI 0.4, 12.2) percentage points increase in birth weight percentile, respectively. No associations were found between other glucose metrics and birth weight percentile. Conclusion Nighttime mean glucose level has a comparable effect size to HSSV in association with fetal growth, suggesting that endogenous hyperglycemia might drive the association between maternal hyperglycemia and birth weight. Further studies need to examine the effect of lowering nighttime glucose level and/or HSSV on preventing fetal overgrowth in GDM women.
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