Since SCFAs have been the subject of previous studies, we evaluated their estimated concentrations, the sum of their concentrations, and their ratios to BCFAs in a separate model: no appreciable association was noted for anti-TNF therapy [p = 0.44], calprotectin level [p = 0.55], or time [p = 0.12], and there was no difference between JIA and CD [p = 0.19]. The gene discussed is TNF; the disease is juvenile idiopathic arthritis.