Parameter

Hb 7.7 group group (n=25)

Hb 9.9 group group (n=27)

P value

Age (years)

58.2 ± 11.7

63.4 ± 11.3

0.103

Sex (male/female)

13/12

16/11

0.805

Weight (kg)

77.7 ± 10.3

76.4 ±12.1

0.677

Height (cm)

168.3 ± 9.9

167.4 ± 8.9

0.749

ASA score (I/II/III)

3/15/7

5/17/5

0.643

Operative procedure
  
Hepatectomy for benign disease
   Hepatectomy for malignant disease
   Whipple’s
   Esophagectomy
   Gastrectomy

3
15
1
2
4

2
18
3
0
4

0.574

Duration of surgery (min)

193.8 ± 61.0

216.2 ± 59.8

0.186

Preoperative Hb level (g dL^-1)

13.1 ± 1.97

13.1 ± 1.40

0.887