Table 3.

Sensitivity analysis exclude series with less than 28 patients in each group.

		No. of studies
Outcomes of interest	No. of studies	RMH	LMH	OR/MD	95%CI	P	I2 (%)
Operation time	6	232	266	25.28	3.38–47.17	.02	70
Blood loss	6	232	266	-15.37	-67.16–36.41	.56	0
Transfusion rate	4	163	161	1.77	0.62–5.04	.28	0
conversion	5	199	233	-0.72	-0.35–1.49	.38	29
RO resection	4	148	122	1.36	0.48–3.83	.56	0
Total complications	6	232	266	0.85	0.49–1.45	.54	37
Minor complication	3	103	150	0.79	0.40–1.55	.49	63
Major complication	3	103	150	1.35	0.55–3.31	.52	0
Hospital stay	3	98	179	1.03	0.31–3.45	.96	0
Mortality	2	64	100	1.36	0.20–9.14	.75	37