Table 4 Comparison of perioperative conditions [\(\overline {X}\)± s].

From: Comparative analysis of the efficacy and functional recovery of unilateral biportal endoscopy-assisted lumbar interbody fusion for the treatment of lumbar disc herniation

Group

Cases

Operation time (min)

Total blood loss (ml)

Postoperative 48-h drainage (ml)

Hospital stays (d)

The experimental group

66

98.6 ± 7.6

326.0 ± 30.5

45.5 ± 8.8

7.0 ± 1.5

The control group

66

115.4 ± 10.5

420.2 ± 36.0

102.7 ± 17.6

12.2 ± 2.0

t

 

10.547

16.208

23.627

16.736

P

 

< 0.001

< 0.001

< 0.001

< 0.001

Effect size(d)

 

0.8

1.1

0.9

1.2

95% CI

 

0.63–1.20

0.88–1.30

0.73–1.12

0.98–1.87

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