Tripartite comparison of single-incision and conventional laparoscopy in cholecystectomy: A multicenter trial

Table 3 Pain and cosmetic scores among the three groups

	X-Conemethod(n = 100) (No.1 group)	Three-device method(n = 100)(No.2 group)	Conventional method(n = 100)(No.3 group)	P values	Statistical methodsand values
Pain score1					One-Way ANOVA
1 d after surgery	3.4 ± 1.2	3.6 ± 1.2	4.2 ± 1.1	0 G1 vs G2 0.296 G1 vs G3 0.000 G2 vs G3 0.005	F = 11.16
2 d after surgery	2.8 ± 0.8	3.0 ± 1.0	3.2 ± 1.0	0.002 G1 vs G2 0.155 G1 vs G3 0.001 G2 vs G3 0.204	F = 6.34
7 d after surgery	2.2 ± 0.6	2.0 ± 0.6	2.3 ± 0.7	0.014 G1 vs G2 0.252 G1 vs G3 0.365 G2 vs G3 0.010	F = 4.35
1 mo after surgery	1.6 ± 0.4	1.5 ± 0.3	1.7 ± 0.5	0 G1 vs G2 0.123 G1 vs G3 0.048 G2 vs G3 0.000	F = 9.435
Cosmetic score2
1 wk after surgery	8 ± 0.7	8 ± 0.5	6 ± 0.4	0 G1 vs G2 0.999 G1 vs G3 0.000 G2 vs G3 0.000	F = 423.61
2 wk after surgery	8 ± 0.8	8 ± 0.6	7 ± 0.3	0 G1 vs G2 0.966 G1 vs G3 0.000 G2 vs G3 0.000	F = 93.67
1 mo after surgery	9 ± 0.2	9 ± 0.3	8 ± 0.5	0 G1 vs G2 0.814 G1 vs G3 0.000 G2 vs G3 0.000	F = 308.9

¹Pain score 1-10;

²Cosmetic score 1-10.