Effectiveness of enhanced recovery after surgery in the perioperative management of patients with bone surgery in China

Table 4 Comparison of the secondary outcome measures between two groups after bone tumor surgery

	Study group	Control group	t/χ2	P value
VAS of POD 11	4.79 ± 2.34	5.28 ± 3.27	13.47	0.00
VAS of POD 31	2.79 ± 1.53	3.98 ± 2.27	8.23	0.01
VAS 1 mo after discharge1	0.88 ± 0.12	1.23 ± 0.67	2.24	0.13
Drainage volume1 (mL)	124.36 ± 23.43	167.43 ± 30.87	12.23	0.00
Blood transfusion, n (%)	7 (13.21)	19 (35.19)	7.02	0.00
Standing walking time (h)1	3.25 ± 3.23	2.92 ± 4.17	3.13	0.07
Satisfaction, n			8.72	0.00
Satisfied	45	32
Dissatisfied	8	22

¹mean ± SD. Visual analog scale (VAS) and of postoperative day 1 (POD 1): VAS score on the first day after operation; VAS and of POD 3: VAS score on the third day after operation. VAS: Visual analog scale; POD: Postoperative day.