Cost et al. (2013) [29] analyzed 195 febrile neutropenia episodes, demonstrating TNF-α’s poor discriminatory power in univariate analysis (54.3 vs. 38.0 pg/mL; p = 0.56), leading to its exclusion from the final multivariate model, despite stepwise significance due to minimal added predictive value. The gene discussed is TNF; the disease is Decreased total neutrophil count.