Table 1 Baseline clinical and hematologic characteristics of study patients stratified according to the treatment

From: Mutation landscape in patients with myelofibrosis receiving ruxolitinib or hydroxyurea

Variables

Ruxo-patients (N = 46)

HU-patients (N = 25)

P

Diagnosis, n.(%)

 PMF

23 (50.0)

19 (76.0)

.050

 PPV-MF

16 (35.0)

2 (8.0)

 PET-MF

7 (15.0)

4 (16.0)

Follow-up from the start of treatment, y: median (range)

3.4 (1.0–7.4)

2.9 (1.0–11.1)

.981

Time from diagnosis to treatment

1.1 (0.3.6)

2.8 (0–3.7)

.743

Males, n (%)

22 (48.0)

15 (60.0)

.232

Age, y; median (range)

63.4 (35.0–81.0)

66.9 (43.0–88.0)

.087

Hemoglobin, g/L; median (range)

107 (70–140)

99 (89–109)

.912

Leukocytes, x109/L; median (range)

13.3 (3.0–103.0)

11.8 (5.8–14.0)

.917

Platelets, x109/L; median (range)

333 (52–750)

433 (227–1378)

.090

Circulating blasts ≥ 1%; n (%)

12 (26.1)

7 (28.0)

.993

Constitutional symptoms; n (%)

43 (93.5)

21 (84.0)

.558

Splenomegaly > 10 cm from LCM; n (%)

35 (76.1)

10 (40.0)

<.0001

Patients with cytogenetic information; N = (% of total)

42 (91.3)

21 (84.0)

.202

Abnormal cytogenetics

19 (45.2)

6 (28.6)

Unfavorable karyotype

4 (9.5)

2 (9.5)

DIPSS

Intermediate-2

40 (86.9)

20 (80.0)

.441

High

6 (13.1)

5 (20.0)

  1. Note: Unfavorable karyotype indicates any of the following: + 8, –7/7q–, i(17q), inv(3), –5/5q, 12p–, or 11q23 rearrangements. DIPSS, Dynamic International Prognostic Scoring System. DIPSS uses five independent predictors of inferior survival: age > 65 years, hemoglobin < 10 g/dL, leukocytes > 25 × 109/L, circulating blasts ≥ 1%, constitutional symptoms, resulting in four (low, intermediate-1, intermediate-2 and high) risk categories