Table 1.

Clinical characteristics of patients suffering from Ph-negative MPNs at diagnosis. PV polycythemia vera, ET essential thrombocythemia, PMF primary myelofibrosis

Characteristics	PV	ET	PMF
Number of patients	20	20	23
Median age, years (range)	57.5 (20–85)	42.5 (20–82)	62 (35–78)
Gender, M/F	11/9	8/12	13/10
Median hemoglobin, g/dl (range)	16.9 (14–22.7)	13.9 (10.5–16.1)	11.6 (8.2–16)
Median hematocrit, % (range)	52 (40–67)	40.6 (34.1–46.4)	35.9 (28–51)
Median red blood cell, M/μl (range)	5.8 (3.9–7.8)	4.6 (3.5–5.7)	4.2 (2.7–5.9)
Median white blood cell, K/μl (range)	11.1 (4.1–70.2)	7.2 (4.7–19.5)	9.5 (5.2–22.5)
Median platelets, K/μl (range)	694.5 (59–2500)	397 (150–893)	530 (119–1200)
Splenomegaly, number of patients	7 (1 lack of result)	2 (1 lack of result)	12 (2 lack of results)