Cessation of status epilepticus for 10 minutes without recurrence within 30 minutes occurred in 101 of 140 ( 72.1 % ) in the diazepam group and 97 of 133 ( 72.9 % ) in the lorazepam group , with an absolute efficacy difference of 0.8 % ( 95 % CI , -11.4 % to 9.8 % ) .