Table 1 Influence of covariates on the likelihood of having a day 14 marrow and of achieving CR

From: Value of routine ‘day 14’ marrow exam in newly diagnosed AML

Parameter (no. of patients)

Patients (pts.) with a day 14 marrow (%)

Multivariate odds ratio for having day 14 marrow (P-value)

Patients achieving CR

Multivariate odds ratio for achieving CR (P-value)

All patients (154)

 Older age (numerical)

0.98 (0.30)

1.00 (0.92)

 Higher pre-treatment blast% (numerical)

1.01 (0.11)

0.99 (0.40)

 Type

De novo (102 pts.)

76 (75%)

1.00

77 (75%)

1.00

Secondary (52 pts.)

40 (77%)

1.12 (0.80)

33 (63%)

0.60 (0.20)

 Cytogenetic risk

Favorable (30 pts.)

18 (60%)

1.00

28 (93%

1.00

Intermediate/poor (124 pts.)

98 (79%)

2.78 (0.03)

82 (66%)

0.14 (0.01)

 Treatment

HiDAC (40 pts.)

26 (65%)

1.00

26 (65%)

1.00

7+3 (114 pts.)

90 (79%)

2.22 (0.06)

84 (74%)

1.57 (0.28)

 Day 14 marrow examined

Yes (116 pts.)

83 (72%)

1.00

No (38 pts.)

  

27 (71%)

0.77 (0.56)

7+3 patients (114)

 Older age

0.98 (0.20)

1.01 (0.56)

 Higher pre-treatment blast%

 

1.02 (0.02)

0.99 (0.34)

 Type

De novo (74 pts.)

60 (81%)

1.00

58 (78%)

1.00

Secondary (40 pts.)

30 (75%)

0.91 (0.86)

26 (65%)

0.53 (0.19)

 Risk

Favorable (22 pts.)

17 (77%)

1.00

21 (95%)

1.00

Intermediate/poor (92)

73 (79%)

1.37 (0.61)

63 (68%)

0.10 (0.04)

 Day 14 marrow examined

Yes (90 pts.)

67 (74%)

1.00

No (24 pts.)

  

17 (71%)

0.77 (0.64)

HiDAC patients (40)

 Older age

1.02 (0.54)

0.98 (0.46)

 Higher pre-treatment blast%

0.99 (0.45)

1.00 (0.91)

 Type

De novo (28 pts.)

16 (57%)

1.00

19 (68%)

1.00

Secondary (12 pts.)

10 (83%)

2.50 (0.38)

7 (58%)

0.77 (0.72)

 Risk

Favorable ( 8 pts.)

1 (13%)

1.00

7 (88%)

1.00

Intermediate/poor (32 pts.)

25 (78%)

25.0 (0.007)

19 (59%)

0.18 (0.18)

 Day 14 marrow examined

Yes (26 pts.)

16 (62%)

1.00

No (14 pts.)

  

10 (71%)

0.77 (0.76)

  1. Abbreviation: CR, complete remission; HiDAC, high-dose cytarabine (1 g/m2 per individual dose).