Table 2.

Baseline data distribution of each group of research subjects.

	Age (years)		Time from injury to operation (days)		Operation time (minutes)		24 hours postoperative drainage (ml)
	Test group	Control group	Test group	Control group	Test group	Control group	Test group	Control group
Mean $\left(\overline{x}\right)$	32.40	31.00	4.30	4.00	48.60	49.20	182.60	191.90
Standard deviation (s)	8.95	9.18	1.25	0.94	4.17	4.42	36.62	35.66
t-value	0.35		0.61		−0.31		−0.58
P-value	0.73 > 0.05		0.55 > 0.05		0.75 > 0.05		0.57 > 0.05