Compared with sensor-augmented pump therapy , CLC improved significantly time spent between @ and @mg/dL ( @ % vs. @ % ; P < @ ) and between @ and @mg/dL ( @ % vs. @ % ; P < @ ) ; CLC reduced the mean glucose level at @:@ h ( @ vs. @ mg/dL ; P < @ ) and overnight mean glucose level ( @ vs. @ mg/dL ; P < @ ) using a marginally lower amount of insulin ( @ vs. @ units ; P = @ ) .