Fig. 1

Associations of titanium tertiles with risk of GDM and plasma glucose concentrations. A RR with 95% CI for the risk of GDM; (B) β with 95% CI for plasma glucose concentrations in 75 g OGTT. The model was adjusted for study center, maternal age at recruitment, pre-pregnancy BMI, residence area, household income, maternal education, parity. GDM, gestational diabetes mellitus; RR, relative risk; CI, confidential interval. OGTT, oral glucose tolerance test; FPG, fasting blood glucose; 1-h PG, one-hour plasma glucose; 2-h PG, two-hour plasma glucose