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Table 2 Patient and donor characteristics in the prospective study

From: Haploidentical allograft is superior to matched sibling donor allograft in eradicating pre-transplantation minimal residual disease of AML patients as determined by multiparameter flow cytometry: a retrospective and prospective analysis

Characteristics

All patients

MSDT

 

HBMT

 

MRDneg

MRDpos

MRDneg

MRDpos

Number of patients

340

62

20

 

202

56

 

Median age (range), years

32 (3–65)

39 (4–55)

41.5 (7–62)

0.612

30 (3–65)

26 (4–61)

0.151

Weight (range), kg

62 (15.5–140)

63 (15.5–91)

65.25 (28–95)

0.631

62 (17–140)

58 (19–92)

0.090

Male, n (%)

208 (61.2%)

32 (51.6%)

15 (75.0%)

0.066

127 (62.9%)

34 (60.7%)

0.768

Diagnosis, n (%)

   

0.146

  

0.603

 De novo AML

318 (93.5%)

61 (98.4%)

18 (90.0%)

 

187 (92.6%)

52 (92.9%)

 

 Secondary AML

22 (6.5%)

1 (1.6%)

2 (10.0%)

 

15 (7.4%)

4 (7.1%)

 

Disease status, n (%)

      

0.165

 CR1

293 (86.2%)

56 (90.3%)

15 (75.0%)

0.080

177 (87.6%)

45 (80.4%)

 

 CR > 1

47 (13.8%)

6 (9.7%)

5 (25.0%)

 

25 (12.4%)

11 (19.6%)

 

FLT3-ITD mutation

   

0.390

  

0.610

 Yes

49 (14.4%)

11 (17.7%)

2 (10.0%)

 

27 (13.4%)

9 (16.1%)

 

 No

291 (85.6%)

51 (82.3%)

18 (90.0%)

 

175 (86.6%)

47 (83.9%)

 

Cytogenetics

   

0.500

  

0.277

 Favorable

43 (12.6%)

7 (11.3%)

1 (5.0%)

 

28 (13.9%)

7 (12.5%)

 

 Intermediate

263 (77.4%)

50 (80.6%)

16 (80.0%)

 

157 (77.7%)

40 (71.4%)

 

 Adverse

34 (10.0%)

5 (8.1%)

3 (15.0%)

 

17 (8.4%)

9 (16.1%)

 

Conditioning regimen, n (%)

 MA

340 (100%)

62 (100%)

20 (100%)

 

202 (100%)

56 (100%)

 

HLA-A-, B-, and DR-mismatched grafts, n (%)

      

0.599

 0

84 (24.7%)

62 (100%)

20 (100%)

 

2 (1.0%)

0

 

 1

7 (2.1%)

0

0

 

5 (2.5%)

2 (3.6%)

 

 2

31 (9.1%)

0

0

 

22 (10.9%)

9 (16.1%)

 

 3

218 (64.1%)

0

0

 

173 (85.6%)

45 (80.4%)

 

Donor-recipient sex-matched grafts, n (%)

 Male–male

136 (40.0%)

15 (24.2%)

6 (30.0%)

 

94 (46.5%)

21 (37.5%)

 

 Male–female

86 (25.3%)

14 (22.6%)

3 (15.0%)

 

55 (27.2%)

14 (25.0%)

 

 Female–male

75 (22.1%)

18 (29.0%)

2 (10.0%)

 

33 (16.3%)

15 (26.8%)

 

 Female–female

43 (12.6%)

15 (24.2%)

9 (45.0%)

 

20 (9.9%)

6 (10.7%)

 

Donor-recipient relationship, n (%)

      

0.283

 Parent–child

132 (38.8%)

0

0

 

99 (49.0%)

33 (58.9%)

 

 Sibling–sibling

153 (45.0%)

62 (100%)

20 (100%)

 

61 (30.2%)

10 (17.9%)

 

 Child–parent

49 (14.4%)

0

0

 

37 (18.3%)

12 (21.4%)

 

 Other

6 (1.8%)

0

0

 

5 (2.5%)

1 (1.8%)

 

ABO matched grafts, n (%)

      

0.344

 Matched

179 (52.6%)

40 (64.5%)

14 (70.0%)

0.660

97 (48.0%)

28 (50.0%)

 

 Major mismatch

70 (20.6%)

10 (16.1%)

4 (20.0%)

 

45 (22.3%)

11 (19.6%)

 

 Minor mismatch

72 (21.2%)

8 (12.9%)

2 (10.0%)

 

46 (22.8%)

16 (28.6%)

 

 Bi-directional mismatch

19 (5.6%)

4 (6.5%)

0

 

14 (6.9%)

1 (1.8%)

 

EBMT score, n (%)

   

0.125

  

0.546

 0

2 (0.6%)

1 (1.6%)

1 (5.0%)

 

0

0

 

 1

66 (19.4%)

21 (33.9%)

6 (30.0%)

 

31 (15.3%)

8 (14.3%)

 

 2

145 (42.6%)

28 (45.2%)

6 (30.0%)

 

90 (44.6%)

21 (37.5%)

 

 3

91 (26.8%)

11 (17.7%)

4 (20.0%)

 

58 (28.7%)

18 (32.1%)

 

 4

30 (8.8%)

1 (1.6%)

3 (15.0%)

 

20 (9.9%)

6 (10.7%)

 

 5

6 (1.8%)

0

0

 

3 (1.5%)

3 (5.4%)

 

Cell compositions in allografts

 Infused nuclear cells, (range) 108/kg

7.83 (2.27–16.66)

7.59 (5.18–14.93) (5.18–14.93)

7.22 (2.27–9.29)

0.201

7.88 (3.93–15.97)

8.17 (3.44–16.66)

0.517

 Infused CD34+ cells, (range) 106/kg

2.55 (0.22–10.95)

2.53 (0.41–6.43)

2.65 (0.90–5.47)

0.829

2.49 (0.22–10.95)

2.78 (0.38–7.20)

0.340

DLI after transplant, n (%)

 For relapse prophylaxis and intervention

32 (9.4%)

5 (8.1%)

4 (20.0%)

0.211

8 (4.0%)

14 (25.0%)

<0.001

 For relapse treatment

8 (2.4%)

2 (3.2%)

2 (10.0%)

0.249

3 (1.5%)

2 (3.6%)

0.297

  1. Abbreviations: HLA human leukocyte antigen, MSDT HLA-matched sibling donor transplantation, HBMT unmanipulated haploidentical blood and marrow transplantation, MRD minimal residual disease, neg negative, pos positive, AML acute myeloid leukemia, CR complete remission, MA myeloablative regimen, EBMT European Group for Blood and Marrow Transplantation, DLI donor lymphocyte infusions