Table 1 Demographics and characteristics of patients^ψ

Age (y)

56.1 ± 12.8

55.3 ± 10.6

0.722^a

Sex (M/F)

30/14

39/30

0.215

Body mass index (kg/m²)

24.1 ± 2.9

25.0 ± 2.8

0.075^a

ASA grade (I/II/III)

25/10/9

40/13/16

0.862^b

Affected side (right/left)

20/24

36/33

0.585^b

Operative time (Min)

60.8 ± 4.6

68.8 ± 5.4

0.000^a

Postoperative hospital stay (Day)

2.8 ± 0.8

3.3 ± 1.7

0.003^a

Follow-up time (Month)

29.4 ± 3.3

40.3 ± 3.9

0.000^a

Blood transfusion

3 (6.8%)

5 (7.2%)

1.000^b

Hb drop (g/L)

32.4 ± 6.7

35.2 ± 6.7

0.003^a