SDC1 and gestational diabetes: Medians (25th centile, 75th centile) of serum concentration for each target are: (1) HS—867.7 (722.8, 1009.6) ng/mL for GDM cases versus 830.8 (590.9, 1011.4) ng/mL for matched cases without GDM; (2) HA—17.4 (9.09, 28.04) ng/mL for cases with GDM cases versus 15.81 (9.31, 18.96) ng/mL for matched without GDM; (3) CS—1648.6 (1219.8, 1866.2) ng/mL for cases with GDM versus 2056.6 (957.3, 2580.3) ng/mL for matched without GDM; and (4) syndecan-1–248.6 (123.7, 463.6) ng/mL for cases with GDM versus 197.2 (123.7, 338.4) ng/mL for matched without GDM.