ABSTRACT
Background: Dyslipidemia is the third component of metabolic syndrome and is a wellknown cardiovascular risk factor. However, the association of dyslipidemia with gestational diabetes mellitus is still a subject of ongoing research in Nigerian obstetric populations.Objective: To determine the relationship between second trimester maternal fasting plasma lipid constituents and gestational diabetes mellitus.Methods: This was a prospective nested case control study that enrolled 288 pregnant women out of which 36 women with GDM (cases) where matched with 72 without GDM (controls) following results of oral glucosetolerance testing and plasma fasting lipid profiles done between 24 28 weeks. The patients were followed up until delivery to document maternal and fetal outcomes. Data was analyzed using Statistical Package for Social Sciences (SPSS). Categorical variables were presented in percentages while continuous variables were expressed as means (±Standard Deviation). Student ttest and Chisquare test or Fishers exact test were used for comparing variables between the two groups. A value of <0.05 at 95%confidence interval was considered statistically significant.Results: The overall mean plasma lipid levels for the four lipid constituents in the study population were 187.9mg/dL, 163.5mg/dl, 49.1mg/dL and 108.1mg/dL for TC, TG, HDLc and LDc respectively. The mean plasma triglyceride was significantly higher in cases compared to the controls: 187.0±67.7mg/dL vs. 151.7±66.4mg/dL, (p = 0.01). Abnormaltriglyceride was significantly associated with GDM (AOR:4.8, 95% CI (1.6-14.4), (p= 0.005).Conclusion:Maternal dyslipidemia (abnormal triglyceride) was shown to be significantly associated with GDM in this study and it appeared to be causally related