Table 1 Demographic data, peripheral blood parameters, MDS subtypes, results of cytogenetics and risk classification according to IPSS/IPSS-R for the total cohort

From: Landscape of genetic lesions in 944 patients with myelodysplastic syndromes

Parameter

Total cohort (n=944)

 

Patient numbers (ratios, ranges or percentages)

Demographic characteristics

944

Males:females (ratio)

580:364 (1.6)

Median age (years)

72.8 (23.3–90.8)

 <50

46 (4.9%)

 50–<60

81 (8.6%)

 60–<70

240 (25.4%)

 70–<80

423 (44.8%)

80

154 (16.3%)

Cases with follow-up

875

 Median follow-up in months

32.3

 Median OS in months

54.5

MDS subtypes (WHO, 2008)

944

 RA

41 (4.3%)

 RARS

81 (8.6%)

 RARS-T

28 (3.0%)

 RCMD

195 (20.7%)

 RCMD-RS33

183 (19.4%)

 RAEB-1

191 (20.7%)

 RAEB-2

188 (19.9%)

 MDS with isolated 5q-deletion

37 (3.9%)

Cytogenetics

944

 Normal karyotype

648 (68.6%)

 Aberrant karyotype

296 (31.4%)

IPSS risk group

848

 Low

324 (38.2%)

 Intermediate-1

319 (37.6%)

 Intermediate-2

171 (20.2%)

 High

34 (4.0%)

IPSS-R risk group

848

 Very low

122 (14.4%)

 Low

340 (40.1%)

 Intermediate

203 (23.9%)

 High

130 (15.3%)

 Very high

53 (6.3%)

  1. Abbreviations: IPSS, International Prognostic Scoring System; MDS, myelodysplastic syndrome; OS, overall survival.