[Retracted] Preoperative Predictors of Prolonged Hospital Stay in Accelerated Rehabilitation for Patients Undergoing Orthopedic Surgery

Table 5

Cross-over (chi-square) analysis.

Subject	Name	Etiology of injury (motor trauma, other trauma, no history of trauma)							Percentage	χ²
		Play basketball	Fall	Crush injury	No obvious injury history	Sprain of knee	Run	Hurt by riding a bike
Injured site	Plastic floor	0	0	0	0	6.82%	0	0	2.88	69.254	≤0.001
	Hilly area	0	0	0	0	4.55%	0	0	1.92
	None	0	0	0	71.43%	0	0	0	28.85
	Cement	100%	90.91%	100%	28.57%	86.36%	100%	100%	64.42
	Earth floor	0	9.09%	0	0	2.27%	0	0	1.92
	Number of cases	3	11	2	42	44	1	1	104

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