Table 4. Results of Egger’s and Begg’s tests.

Comparison	N	Egger's test			Begg's test
		t	P-value	95% CI	Z	P-value
Overall	48	1.4	0.167	(-0.30-1.69)	0.02	0.986
OS	28	-0.15	0.879	(-1.89-1.63)	0.18	0.859
PFS	11	1.31	0.224	(-0.73-2.71)	0.62	0.533
OS/PFS	9	4.67	0.002	(0.77-2.34)	1.15	0.251
Caucasian	10	1.71	0.127	(-0.47-3.12)	0.89	0.371
Asian	38	0.45	0.653	(-0.97-1.53)	0.62	0.538