Table 2. Meta-analysis of Studies Measuring Baseline Cytokine Levels in Responder and Non-responder.

Citochina	Responder (N)	Non Responder (N)	ES (IC 95%)	p-value	I2(%)
IL-1β	89	75	0.19 [−0.49, 0.86]	0.64	74
IL-2	152	155	0.48 [−0.07, 1.03]	0.09	81
IL-4	114	132	–0.14 [−0.48, 0.20]	0.41	38
IL-6	374	362	0.02 [−0.13, 0.17]	0.79	1
IL-8	151	144	–0.27 [−0.49, −0.05]	0.02	10
IL-10	134	152	–0.00 [−0.24, 0.23]	0.98	29
TNFα	380	282	–0.03 [−0.33, 0.27]	0.83	66
INFγ	110	136	–0.06 [−0.31, 0.19]	0.64	45
PCR	698	795	–0.18 [−0.28, –0.08]	0.0006	0
GM-CSF	123	137	0.09 [−0.16, 0.33]	0.48	0