Number

Min

Max

Mean

P-value

Gender

male

female

male

female

male

female

male

female

Preoperative Hb

26

22

11.3

8.3

16.5

16.4

14.36

12.3

<0.001

Preoperative Hct

26

22

27.6

24.2

49.7

50.2

44

37.2

<0.001