Also during the @-hour study period , each of pH > @ , @ , @ , @ , and @ was maintained for a longer duration after administration of esomeprazole @ mg than after administration of omeprazole @ mg ( median : @ % vs. @ % , p = @ ; @ % vs. @ % , p = @ ; @ % vs. @ % , p = @ ; @ % vs. @ % , p = @ ; @ % vs. @ % , p = @ ; respectively ) .