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Published on: August 30, 2018
Antibiotic-Induced Liver Injury in Paediatric Outpatients: A Case-Control Study in Primary Care Databases
Carmen Ferrajolo1,2, Katia M C Verhamme3, Gianluca Trifirò3,4
1Department of Experimental Medicine, Pharmacology Section, Campania Regional Centre of Pharmacovigilance and Pharmacoepidemiology, University of Campania, Via Santa Maria di Costantinopoli, 16, 80138, Naples, Italy. carmen.ferrajolo@unina2.it.
Insights
Antibiotic use in children is linked to a higher risk of liver injury. Certain antibiotics like ceftriaxone and cotrimoxazole pose a significant risk, even with short-term use.
Area of Science:
- Pediatric pharmacology
- Hepatology
- Drug safety surveillance
Background:
- Antibiotics are frequently prescribed for children.
- Real-world data suggests a potential link between antibiotic exposure and acute liver injury in pediatric patients.
Purpose of the Study:
- To evaluate the risk of liver injury associated with antibiotic use in pediatric outpatients.
- To quantify the association between antibiotic exposure and liver injury in children and adolescents.
Main Methods:
- A large-scale, population-based case-control study was conducted in Italy and The Netherlands (2000-2008).
- Liver injury cases (<18 years) were identified and validated using CIOMS criteria.
- Up to 100 controls were matched per case, with antibiotic exposure categorized as current, recent, or past use.
- Multivariate conditional logistic regression analysis was employed to determine odds ratios (ORs).
Main Results:
- 938 liver injury cases were matched with 93,665 controls.
- Current antibiotic use showed a threefold increased risk of liver injury (adjusted OR: 3.22).
- Significant risk increases were observed for specific antibiotics, with cotrimoxazole (OR: 24.16) and ceftriaxone (OR: 26.70) showing the highest risks.
Conclusions:
- Antibiotic-induced liver injury in children is variable depending on the specific antibiotic.
- Pediatricians must be aware of the liver injury risks associated with prescribing ceftriaxone, cotrimoxazole, and clarithromycin, even for brief durations.
Introduction:
Antibiotics are the most commonly prescribed drug class in children. Real-world data mining on the paediatric population showed potential associations between antibiotic use and acute liver injury.
Objective:
We assessed risk estimates of liver injury associated with antibiotic use in children and adolescent outpatients.
Methods:
A large, multi-database, population-based, case-control study was performed in people <18 years of age from two European countries (Italy and The Netherlands) during the period 2000-2008. All potential cases of liver injury were automatically extracted from three databases and then manually validated based on Council for International Organizations of Medical Sciences (CIOMS) criteria and by exclusion of all competing causes for liver injury. Up to 100 control participants were sampled for each case and were matched on index date of the event, age, sex and database. Based on prescription data, antibiotic exposure was categorized as current, recent or past use by calculating the time period between the end of prescription and the index date. Multivariate conditional logistic regression analyses were applied to calculate odds ratios (ORs) as a measure of the association (with 95% confidence interval [CI]).
Results:
We identified 938 cases of liver injury and matched to 93,665 controls. Current use of overall antibiotics is associated with a threefold increased risk of liver injury compared with past use (adjusted OR [ORadj] 3.22, 95% CI 2.57-4.03). With regard to individual antibiotics, the risk is significantly increased for current use of each antibiotic (p < 0.005), except for azithromycin. Risk estimates vary from the lowest ORadj of 1.86 (95% CI 1.08-3.21) for amoxicillin to the highest ORadj of 24.16 (95% CI 11.78-49.54) for cotrimoxazole (i.e. sulphamethoxazole/trimethoprim) and 26.70 (95% CI 12.09-58.96) for ceftriaxone. Sensitivity analyses confirm the associations for ceftriaxone, cotrimoxazole, and clarithromycin.
Conclusion:
Antibiotic-induced liver injury in children is heterogeneous across the use of individual antibiotics. When prescribing ceftriaxone, cotrimoxazole and clarithromycin in children, paediatricians should definitely be aware of their potential risk of liver injury, even if for short periods.
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