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Table 5 Factors affecting in overall CR rate

From: Defining the optimal dose of radiation in leukemic patients with extramedullary lesions

Factors ( 2 × 2 analysis)

CR (15 sites)

Non-CR (27 sites)

Total

p -value

Primary disease

Yes

10

17

27

0.810

AML

No

5

10

15

 

RT site

Yes

9

7

16

0.029*

Soft tissue

No

6

20

26

 

Concurrent

Yes

3

7

10

1.000

Chemotherapy

No

12

20

32

 

Initial size

Yes

0

7

7

0.038*

BP ≥ 30 cm2

No

15

20

35

 

Initial size

Yes

1

12

13

0.015*

LD ≥ 6.0 cm

No

14

15

29

 

Follow up time

Yes

13

17

30

0.158

≥ 2 weeks

No

2

10

12

 

Total dose

Yes

8

9

17

0.326

≥ 25 Gy

No

7

18

25

 

BED10

Yes

8

10

18

0.347

≥ 30 Gy

No

7

17

24

 
  1. Abbreviations: CR = Complete response, ML = Acute myeloid leukemia, BP = Bidimensional product, LD = Largest dimension, BED = Biologic effective dose
  2. *Statistically significant factors