ANGPTL4 and systemic mastocytosis: Analysis of the correlation between the levels of ANGPTL4 and INHBE showed that these 2 candidate biomarkers were not significantly correlated among SM cases (ρ = 0.17, P = 0.18); combining both biomarkers in a logistic regression model (CM, ANGPTL4 + INHBE) resulted in a good model fit (significant log-likelihood ratio [LLR], P < 6 × 10–4); and using a LLR test showed that the ANGPTL4 + INHBE model was significantly better than the individual models (ANGPTL4 + INHBE versus INHBE, P < 0.05; ANGPTL4 + INHBE versus ANGPTL4, P < 0.004).