Journal
JOURNAL OF PERINATOLOGY
Volume 37, Issue 2, Pages 127-133Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/jp.2016.191
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Funding
- 'China GDM centers-Establishment and Training Dissemination' from the World Diabetes Foundation [WDF10-517]
- 'Diabetes Management beyond Pregnancy' via the World Diabetes Foundation [WDF14-908]
- 'Sample library construction and plasma biomarker investigation on recurrent spontaneous abortion and preeclampsia' from the Major Program of the National Natural Science Foundation of China [81490745]
- 973 national science and technology plan project [2015CB94330]
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OBJECTIVE: To evaluate the association between early pregnancy lipid profiles and pregnancy outcomes. STUDY DESIGN: Retrospective 6 months analysis of 5218 singleton pregnant women. Each participant's demographic and medical data were collected by questionnaires and medical records. Total cholesterol (TC), triglycerides (TG), high-density lipid cholesterol (HDL-C) and low-density lipid cholesterol (LDL-C) levels were divided into quartiles, and the women were categorized as having low ( < 25th percentile), referent (25 to < 75th percentile) or high (> 75th percentile) TC, TG, HDL-C and LDL-C values. Differences between groups were tested using t-test and Pearson's chi(2)-test. Binary logistic regression and multivariate analysis was conducted to evaluate the associations between lipid values and the risk of pregnancy outcomes. RESULTS: (1) Women who subsequently developed adverse pregnancy outcomes had higher levels of TC, TG, LDL-C and lower levels of HDL-C during early pregnancy ( < 14 gestational weeks). (2) A trend toward an increasing incidence of adverse pregnancy outcomes was noted with increasing levels of TC, TG and LDL-C, and decreasing level of HDL-C. (3) The more numbers of TC, TG and LDL-C above 75th percentile and HDL-C inferior to 25th percentile women had, the higher their risk of developing adverse pregnancy outcomes. (4) Low TG level was a protective factor for gestational diabetes mellitus (GDM) ( < 1.44 mmol l(-1), odds ratio (OR) = 0.706, 95% confidence interval (Cl), 0.586 to 0.852) and large for gestational age infants (LGA) ( < 1.44 mmol(-1), OR= 0.769, 95% CI, 0.631 to 0.936), and low LDL-C ( < 1.89 mmol(-1)) level was protective factor for preterm birth. High TG (>1.40 mmol(-1), OR =1.327, 95% CI, 1.130 to 1.558), TC (> 4.29 mmol(-1), OR =1.250, 95% CI, 1.062 to 1.471), and LDL-C (> 2.62 mmol(-1), OR= 1.25, 95% Cl, 1.069 to 1.480) levels and a low HDL-C (< 1.89 mmol(-1), OR = 1.190, 95% Cl, 1.007 to 1.405) level were associated with increased risk of GDM. A high TG (>1.40 mmol(-1), OR = 1.550, 95% CI, 1.025 to 2.343) level was related to high risk of preeclampsia (PE), while a high LDL-C (>2.62 mmol l(-1), OR = 1.400, 95% Cl, 1.100 to 1.781) level was risk factor for macrosomia. (5) After adjusting for confounders, early pregnancy TC was an independent risk factor for GDM (ajusted odds ratio [aOR] = 1.184, 95% Cl, 1.085 to 1.291), TG level was independently associated with the prevalence of GDM (aOR = 1.253, 95% Cl, 1.141 to 1.375) and PE (aOR = 1.245, 95% CI, 1.023 to 1.516), and LDL-C level was significantly associated with risk of GDM (aOR = 1.162, 95% Cl, 1.052 to 1.283) and preterm birth (aOR = 1.264, 95% Cl, 1.065, 1.501). CONCLUSIONS: Early pregnancy high levels of TC, TG, LDL-C and low level of HDL-C may be predictive biomarkers for adverse pregnancy outcomes, while early pregnancy low TC, TG, LDL-C levels and high HDL-C levels could have some protective roles.
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