Figure 2.

Concentrations of serum amyloid A (SAA) in peritoneal fluid (PF), from horses with simple obstructions (blue), strangulating obstructions (black), and inflammatory diseases (red) grouped according to duration of colic at admission. Significant differences between disease processes within each duration interval are marked with stars (***P ≤ .001). Significant differences between duration intervals within each disease process are marked with letters; significant difference from <4 hours (a), 5–12 hours (b), 13–24 hours (c).