Figure 1
From: Prediction of gestational age using urinary metabolites in term and preterm pregnancies
Study design and cohort characteristics. (a) Urine samples from 99 pregnant women were collected across 5 sites and analyzed using a broad-spectrum metabolomics LC–MS platform. The sources of the images are described in the Methods section. (b) GA at collection and at delivery across the collection sites. Urine samples were collected early in pregnancy 8–19 weeks and 49 women delivered at term (> 37 weeks’ GA) and 50 women delivered preterm (≤ 37 weeks’ GA). (c) Structural categorization of detected urine metabolites according to the “Superclass level” of the ClassyFire classification system.
