Table 4.

Publication bias of outcomes by Egger’s test and Begg’s test

	Egger’s test		Begg’s test
	t	P	Z	P
Time interval of body temperature returning to normal rangetime	1.17	0.306	0.75	0.452
Time interval of White white blood cells count returning to normal timerange	-	-	0.00	1.00
Duration of operation	-0.9	0.409	1.2	0.230
Length of hospitalizations (vs LA)	-0.48	0.648	0.37	0.711
Length of hospitalizations (vs Anti)	-1.72	0.336	0.00	1.00
CRP (pre-operative)	2.23	0.268	1.04	0.296
CRP (post-operative)	-0.19	0.878	0.00	1.00
TNF-α (pre-operative)	-	-	0.00	1.00
TNF-α (post-operative)	-	-	0.00	1.00
IL-6 (pre-operative)	-1.27	0.425	0.00	1.00
IL-6 (post-operative)	-7.43	0.085	1.04	0.296
Intestinal obstruction	2.03	0.179	1.70	0.089
Abdominal infection	-	-	0.00	1.00
Urinary tract infection	11.87	0.053	0.00	1.00
Bed rest time	-3.1	0.021	1.11	0.266

LA: Laparoscopic appendectomy.