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Table 5 Comparison of clinical features and cytogenetic abnormalities in primary MDS in S.Asia

From: Higher prevalence of poor prognostic markers at a younger age in adult patients with myelodysplastic syndrome – evaluation of a large cohort in India

 

This study

Gupta [30]

Vundinti [29]

Anwar [35]

Mahmood [28]

Rashid [34]

Country

India

India

India

Pakistan

Pakistan

Pakistan

Year

2023

2017

2009

2017

2018

2014

No. of patients

988

150

104/160*

177

178

122

Age, median (range)

53(18–86)

55.5(2–87)

44(5 mo-75)

50(3–90)

58(30–85)

60(40–80)

M: F ratio

1.8:1

1.6:1

2.1:1

3.0:1

2.0:1

1.5:1

No. of karyotypes,

936

86

104/160*

98

178

71

Clonal abnormalities, %

55.2

50

49

44

46.6

42.3

Frequencies of individual abnormalities, %

 

Der (1;7)

0.9

Inv/t/del 3q

0.96

5q−

14.5

3.5

5.8

6.1

7.3

2.8

−7/ 7q−

13.1/3

16.3

12.5

7.1/2

6.7 (5.6/1.1)

−/4.2

+ 8

11.5

1.2

4.8

3.1

12.9

9.9

11q−

2

2.8

1.4

12p−

1.6

−13/13q−

1.8/1.2

i(17)q

0.9

0.6

−17/17p−

3/0.5

2.9

−18

3

+ 19

15(1.6)

1.4

20q−

5.1

4.7

1.9

4

2.2

1.4

+ 21

3.3

1

−Y

2.6

2.8

2.8

No. of abnormalities in each karyotype, %

Single abnormality

29.8

19.8

31.4

19.2

Double abnormalities

7.5

8.1

4.5

6.7

IncC**

2.7

All CK

15

16.3

12

10.7

16.4

CK with 3 abnormalities

3.8

CK with > 3 abnormalities

11.2

Cytogenetic score (prognosis) categories, %

Very good

2

1.1

5.6

Good

55.6***

56.9

62.9

Intermediate

16.2

11.6

15.2

Poor

15

13.9

12.9

Very poor

11.2

16.2

3.4

Clinical (IPSS-R) risk groups, %

Very low

3.9

2.3

9.6

Low

30.9

12.8

41

Intermediate

24.2

29

27.1

High

21

31.4

13.5

Very high

20

24.4

9.1

  1. *excluding RAEB-t, CMML and RAEB with t(8;21),n = 41; i, isochromosome; ** IncC, independent non-complex clones; ***comprises 10.6% abnormal and 45% normal karyotypes