Figure 2

Longitudinal changes in inflammatory markers across pregnancy by preterm birth status. Logged (natural log) plasma concentrations of (a) CHI3L1 (ng/mL), (b) CRP (μg/mL), (c) IL-18BP (ng/mL), (d) IL-6 (pg/mL), (e) sICAM-1 (ng/mL), and (f) sTNFR2 (ng/mL) by gestational age of sample collection. Abbreviations: CHI3L1, chitinase-3-like 1; CRP, C-reactive protein; IL-6, interleukin-6; IL-18BP, interleukin 18 binding protein; sICAM-1, soluble intercellular adhesion molecule-1; sTNFR2, soluble tumor necrosis factor receptor-2.