Table 6 . Annual Relapse Rate .

Study	SMD	[95% Conf. Interval]	% Weight
Fazekas (1997)	-0.482	-0.809 -0.155	35.23
Achiron (1998)	-1.215	-1.892 -0.538	8.21
Lewanska (2002) 0.2g/kg	-0.347	-1.025 0.330	8.20
Lewanska (2002) 0.4g	-0.425	-1.128 0.277	7.63
Fazekas (2008) 0.2g	0.315	-0.113 0.744	20.54
Fazekas (2008) 0.4g	0.235	-0.197 0.667	20.19
I-V pooled SMD	-0.218	-0.412 -0.024	p=0.001

SMD=Standardized mean difference; IVIG=Intravenous immunoglobulin