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Antimicrobial defined daily dose adjusted by weight: a proposal for antibiotic consumption measurement in children
Elena Montecatine-Alonso1, María-Victoria Gil-Navarro1, Cecilia M Fernández-Llamazares2
1Department of Pharmacy, Institute of Biomedicine of Seville (IBIS), Hospital Universitario Virgen del Rocío, Sevilla, Spain.
Insights
A new method for measuring antimicrobial consumption in children was developed. This pediatric defined daily dose (DDD) approach accounts for weight and age, improving antimicrobial stewardship program accuracy.
Area of Science:
- Pediatric pharmacology
- Antimicrobial stewardship
- Public health
Background:
- The standard defined daily dose (DDD) is not ideal for measuring antimicrobial consumption in children.
- Pediatric antimicrobial use requires a tailored measurement approach.
Purpose of the Study:
- To propose and describe a new method for calculating pediatric defined daily doses (DDD).
- To adapt antimicrobial consumption metrics for pediatric populations.
Main Methods:
- A cohort of children under 16 years old from 10 Spanish hospitals was studied over 12 months.
- Weight-for-age was determined using World Health Organization standards for the median age.
- Pediatric DDD (g) was calculated using the child's weight and the recommended antimicrobial dose for common infections.
Main Results:
- The study included 40,575 children, with median ages of 4.17 years for boys and 4.81 years for girls.
- The mean weight for the median age cohort was 17.08 kg.
- Standardized DDD values were calculated for several representative antimicrobials.
Conclusions:
- A practical method for measuring pediatric antimicrobial DDD has been proposed.
- Further validation is recommended for implementation in pediatric antimicrobial stewardship programs.
Introduction:
Antimicrobial defined daily dose (DDD), has limitations for antimicrobial consumption measurement in paediatrics. An alternative DDD design applicable for children is proposed.
Methods:
Children (<16 years-old) from 10 Spanish hospitals during a 12-months period were included. Weight for age (50th percentile) was calculated for the median age of the cohort using standardized World Health Organization tables. DDD (g) for each antimicrobial was calculated by multiplying the obtained weight times the recommended dose (mg/kg) of the antimicrobial for the most common infectious indication.
Results:
A total of 40,575 children were included. Median age was 4.17 (IQR: 1.36-8.98) and 4.81 (IQR: 1.42-9.60) years for boys and girls, respectively. Mean weight for this age was 17.08kg. Standardized DDD for representative antimicrobials were calculated.
Conclusions:
A useful method for antimicrobial DDD measurement in paediatrics has been proposed and should be validated in future studies for its use in paediatric antimicrobial stewardship programmes.
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