Defined Daily Dose (DDD) data baselines for antibiotics

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The defined daily dose (DDD) is a statistical measure of drug consumption, defined by the World Health Organization (WHO). It is used to standardise the comparison of drug usage between different drugs or between different health care environments.



Upon request from NHS England, PHE have estimated total hospital consumption for all antibiotics (old BNF section 5.1), using trust validated antibiotics and the addition of IMS data where the drugs were not included in the validation quality premium.