Noninferiority of Insuman versus Insuplant was demonstrated both for the HbA@c change from baseline ( as a percentage ) with intergroup difference of @ % confidence interval ( -@ ; +@ ) and for the infusion accuracy assessed by the measured percentage of error at pump refill , as shown by intergroup difference of @ % confidence interval ( -@ ; -@ ) , in per-protocol populations , although the insulin daily dose was similar .