ERCC4 and myeloproliferative neoplasm: The results of the logistic regression (Table 7) revealed that three variables, namely XPD 2251A>C (p = 0.004), XPF-673C>T (p < 0.001), and XPF 11985A>G (p < 0.001), had a dependency relationship statistically significant to the MPN patients’ outcome.