Close  
Figure 1 : Risk ratios of different types of graft in multivariate analysis are shown by a cross. Risk ratios of arterial graft were calculated assuming the rightsided and leftsided sequential grafts to be different. The vertical bar indicates actual value, and the transverse bar and numerals indicate 95 % confidence limit. Asterisks indicate statistical significance. SSVG = sequential saphenous vein graft. 
