Table 1

Proportion of infants in each postconceptional age (PCA) subgroup with both trough and peak concentrations within the respective therapeutic ranges

PCA <28 weeksPCA 28–34 weeksPCA >34 weeks
The first value is the number of infants with both trough and peak vancomycin concentration in the respective intended range. The second value is the total number of infants in each PCA subgroup. Values in parentheses are percentages.
Range A9/32 (28)23/48 (48)10/21 (48)
Range B17/32 (53)29/48 (60)10/21 (48)