TNF and myeloproliferative disorder: A multivariate logistic regression analysis identified age (OR: 1.06 [95% CI: 1.00–1.13] p=0.048), PLT count (OR: 1.01 [95% CI: 1.01–1.02] p=0.001), serum TNF-α level (OR: 1.40 [95% CI: 1.15–1.95] p=0.014), size of spleen (OR: 5.06 [95% CI: 1.49–26.25] p=0.023) were independent predictive factors available for differentiating newly onset MPN and IE/IT (Table 5).