Fig. 2From: Normative values for circulating intestinal fatty acid binding protein and calprotectin across gestational agesScatterplot of repeat measures of intestinal fatty acid binding protein (IFABP) by day of life in the premature longitudinal cohort (N = 19) with a linear fit prediction plot for IFABP (y) on day of life (x). Levels rose by 4% with increasing day of life (P < 0.001), though much of the variability was not accounted for by age alone (correlation = 0.22)Back to article page