Table 3.

Surgical outcomes between the two groups

	Early group (n = 20)	Late group (n = 62)	OR or difference	95% CI	P value
Operation time (min)	56.95 (95% CI, 49.12–64.78)	45.34 (95% CI, 42.45–48.22)	11.61 ± 4.01	3.353–19.872	0.008†
Hospital stay (days)	3.7 ± 0.9	3.5 ± 1.2	0.2 ± 0.8	− 0.749–1.354	0.764‡
Return-to-work (days)	15.5 ± 7.0	15.0 ± 5.2	0.5 ± 2.0	− 4.429–5.783	0.848‡
Complication	2 (10.0%)	5 (8.1%)	0.950	0.055–16.293	0.744§
Failure or recurrence	3 (15.0%)	11 (17.7%)	0.083	0.009–0.781	0.904§
Additional block	2 (10.0%)	6 (9.7%)	0.947	0.120–7.457	0.678§
Revision surgery	1 (5.0%)	5 (8.1%)	2.000	0.167–23.960	0.578§

CI confidence interval, OR odds ratio

^†Mann–Whitney U test, ‡independent t-test, §Pearson’s Chi square test