Table 1: Diagnosis of MPNs and related gene mutation study results.

MPNs JAK2+ CALR+ MPL+ Exon12+ Total %
ET 29 6 1 0 36 66.7
PV 12 0 0 1 13 24.1
PMF 0 2 0 0 2 3.7
MPN-U 2 1 0 0 3 5.5
Total 43 9 1 1 54 100