Optimal approach for total endoscopic discectomy and its effect on lumbar and leg function in patients with disc herniation

Table 3 Comparison of perioperative indicators between the control and observation groups

Group	Operative time (h)	Intraoperative blood loss (mL)	Hospital stay (d)
Observation group (n = 62)	6.74 ± 1.37	33.21 ± 1.95	4.34 ± 1.33
Control group (n = 58)	6.71 ± 1.51	33.60 ± 1.96	5.38 ± 1.57
t value	0.133	1.097	3.933
P value	0.884	0.275	0.000