Table 2

In-hospital costs

Cost	Group; mean ± SD		Mean difference (95% CI)	p value
Cost	Early discharge	Standard care	Mean difference (95% CI)	p value
Operating room	1438.85 ± 275.62	1622.77 ± 484.51	−183.91 (−395.17 to 53.31)	0.09
Intraoperative medications	104.36 ± 13.09	77.38 ± 21.76	26.98 (14.41 to 37.90)	< 0.001
Inpatient stay	649.62 ± 281.71	1279.71 ± 515.98	−630.09 (−864.47 to −413.44)	< 0.001
Total cost^*	2563.48 ± 396.48	3497.92 ± 916.27	−934.44 (−1453.16 to −483.54)	< 0.001

CI = confidence interval; SD = standard deviation.
↵* The total cost does not include procedure-related equipment and implant costs, as these were assumed to be similar between groups.