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Table 1 Results of JAK2V617F Tests

From: Relevance of JAK2V617F positivity to hematological diseases - survey of samples from a clinical genetics laboratory

Sample Types and Diagnosis Number of total samples Number of V617F+ samples Percentage of V617F+ samples Average ages of V617F- samples Average ages of V617F+ samples
Blood and Bone Marrow Specimens
Hematological diseases 665 32 4.8* 52.8 64.6**
Ph- MPNs 18 14 78* 62.3 69.2
Leukocytosis 23 2 8.7* 50.8 62.5
Acute myeloid leukemia 113 6 5.3* 47.9 56.8
Leukemia (unspecified) 70 3 4.3* 47.1 66.6
Anemia 65 2 3.1* 54 76.8
Lymphoma 98 3 3.1* 55.6 60.2
MDS and probable MDS 111 2 1.8 55.8 49.9
Acute lymphoblastic leukemia 21 0 0 13 -
Chronic lymphocytic leukemia 14 0 0 67.4 -
Chronic myeloid leukemia 32 0 0 47.9 -
Multiple myeloma 50 0 0 65.1 -
Thrombocytopenia 29 0 0 60.1 -
Other hematological diseases 21 0 0 54.4 -
Non-hematological diseases 1731 0 0 7.3 -
Developmental disorders 1370 0 0 4.9 -
Multiple miscarriage/infertility 83 0 0 30.2 -
Others 278 0 0 14.8 -
Normal samples 232 0 0 54.5 -
Amniotic Fluid Specimens
Cytogenetic screening 267 0 0 31.3 -
  1. * P < 0.05 when comparing the percentage of JAK2V617F positivity with normal samples.
  2. ** P < 0.05 when comparing the ages of JAK2V617F+ and JAK2V617F- samples within each disease.