Learning curve of transumbilical suture-suspension single-incision laparoscopic cholecystectomy

Table 3 Surgical data

	Overall	Group 15	Group 2	Group 3	Group 4	Group 5	Group 6	Group 7	Group 8	Group 9
Surgery time14	53.58 ± 30.08	82.45 ± 23.442	59.00 ± 25.47	58.50 ± 21.16	55.00 ± 17.77	49.50 ± 12.45	45.50 ± 20.22	44.75 ± 18.67	45.25 ± 17.95	42.25 ± 13.52
Blood loss1	12.70 ± 11.60	16.65 ± 9.96	12.55 ± 13.45	14.05 ± 14.55	13.70 ± 9.76	12.90 ± 12.01	11.60 ± 12.31	12.70 ± 12.23	11.60 ± 11.10	10.55 ± 9.83
Complications3	8	3	1	2	0	1	0	0	1	0

¹One-way ANOVA;

²Values are mean ± SD;

³χ² test;

⁴Comparisons between groups were performed using ANOVA followed by Bonferroni’s test;

⁵The operation time in group 1 was significantly longer than that in the other groups (F = 7.257, P = 0.000).