failed to reach significancep =0.21
Compared with patients who suffered from IIH for more than one year (n=15) the difference of total OBV failed to reach significance (116.6±24.3 vs. 135.1±43.6 mm 3 , p =0.21) and there was no difference in number of reduced OBV (7/16 bulbs (43.8%) vs. 9/30 bulbs (30.0%), p =0.38).