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Updated: Jul 17, 2026

Population and Single-Cell Analysis of Antibiotic Persistence in Escherichia coli
Published on: March 24, 2023
[Geographic variability in prescribing antibiotics in the pediatric population of Castille and León during 2001-2005]
M E Vázquez1, E Pastor, M R Bachiller
1marvazfer@hotmail.com
Insights
Antibiotic use in children varied significantly across Spain
Area of Science:
- Pediatric Pharmacology
- Public Health
- Infectious Disease Epidemiology
Background:
- Antibiotic consumption is a key factor in antimicrobial resistance.
- Understanding pediatric antibiotic prescribing patterns is crucial for public health initiatives.
- Variability in antibiotic use can indicate differences in clinical practice and resource allocation.
Purpose of the Study:
- To assess antibiotic consumption differences in pediatric populations across eleven Primary Health Care centers in Castilla Leon (2001-2005).
- To analyze potential causes for observed variations in antibiotic prescribing.
- To evaluate both quantitative and qualitative aspects of antibiotic use in this region.
Main Methods:
- Analysis of non-hospital antibiotic consumption data from the Health Service of Castilla Leon.
- Data categorized using the Anatomic Therapeutic Chemical Classification System (ATC).
- Consumption expressed as defined daily doses per 1000 inhabitants per day (DID).
Main Results:
- Statistically significant differences in antibiotic use were found, with rates varying by 8.3 DID between Leon (highest) and Soria (lowest).
- Prescribing patterns and temporal fluctuations in antibiotic use showed considerable variation, notably in Segovia.
- Penicillin with beta-lactamase inhibitors varied nearly threefold between Burgos and Segovia; Segovia demonstrated good management, while Soria showed low consumption but misuse.
Conclusions:
- Significant quantitative and qualitative variability in pediatric antibiotic use exists among primary health care centers in Castilla Leon.
- Further research is needed on age groups, socioeconomic factors, and indications to fully understand antibiotic use determinants in children.
- Optimizing antibiotic prescribing requires addressing both consumption levels and adherence to recommended guidelines.
Abstract:
The aim of this study was to determine if there were differences in the antibiotic consumption among the pediatric population of the eleven Primary Health Care centers in the Community of Castilla Leon during the years 2001-2005 and to analyze the possible causes. Data of non-hospital antibiotic consumption in the pediatric population provided the amount of antibiotics billed in the Health Service of the area of Castilla and Leon (central region of Spain). The data was analyzed according to the Anatomic Therapeutic Chemical Classification System (ATC) and expressed as defined daily doses per 1000 inhabitants per day (DID). There were statistically significant differences in the use of antibiotics, varying 8.3 DID between the area with the highest rate (24.86 DID in Leon) and the area with the lowest rate (16.56 DID in Soria). The temporal fluctuations were great and varied especially in Segovia. The pattern of prescribing also varied. The use of penicillin in combination with beta-lacatamase inhibitors varied by a factor of almost three times between Burgos and Segovia. Segovia showed the best management in antibiotic prescriptions with data showing low consumption based on prescribing recommendations. Data from Soria showed low consumption but patterns of misuse in regard to protocols and prescribing. There was wide quantitative and qualitative variability of antibiotic use among the primary health care centers in the region of Castilla and Leon. More detailed studies by age groups, welfare pressure and indication are needed to better understand the determinants of antibiotic use in children.
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