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Effect of pharmacist interventions on antibiotic use in the general pediatric ward.

Antibiotics are widely prescribed and often used irrationally in Chinese hospitals. This study aimed to evaluate the pharmacist's influence on antibiotic use in the pediatric ward. We conducted this pre-to-post intervention study in the pediatrics of a Chinese tertiary hospital. The patients hospitalized from April to June 2018 were assigned to the pre-intervention group and those from April to June 2019 were distributed to post-intervention group. In the post-intervention stage, the pharmacist took measures to promote rational use of antibiotics and their effects were assessed. This study analyzed data of 1408 patients totally, 671 and 737 in the pre-intervention and post-intervention group respectively. The interventions of clinical pharmacist significantly reduced the rate of using antibiotics without indications (from 33.55% to 15.82%, p<0.01), percentage of inappropriate antibiotic choice (from 24.79% to 16.58%, p p<0.01), dose (from 8.55% to 4.34%, p p<0.05), combination (from 11.75% to 5.10%, p p<0.01) and prolonged duration (from 14.53% to 10.46%, p p<0.05). The mean antibiotic cost and cost/patient-day were also significantly reduced after the intervention. The ratio of average antibiotic cost saving to pharmacist time cost was 16.77:1. The pharmacist could play vital roles in optimizing antibiotic use, thus resulting in favorable clinical and economic outcomes in pediatric ward.