Table 3.

Results of published year subgroup.

	Published in 2023						Published before 2023
Subgroup	Number of studies	Number of patients	I2 (%)	Overall effect size	95% CI of overall effect size	P	Number of studies	Number of patients	I2 (%)	Overall effect size	95% CI of overall effect size	P
Operating time (min)	8	1693	3	SMD=−0.05	[−0.15, 0.05]	0.30	11	2809	76	SMD=0.17	[−0.01, 0.34]	0.06
Blood loss (ml)	8	1693	54	SMD=−0.2	[−0.36, −0.05]	0.01	9	2219	89	SMD=−0.39	[−0.67, −0.10]	0.009
Pringle applied	6	1480	57	OR=1.09	[0.75, 1.61]	0.65	10	2919	94	OR=0.56	[0.25, 1.23]	0.15
Pringle duration (min)	7	1251	24	SMD=−0.08	[−0.22, 0.05]	0.24	6	1713	93	SMD=0.12	[−0.29, 0.52]	0.57
Hospital stay (days)	7	1581	74	SMD=−0.11	[−0.32, 0.10]	0.29	11	2780	41	SMD=0.02	[−0.09, 0.13]	0.69

SMD/OR, standard mean difference/odds ratio; statistically significant results are shown in bold.