期刊
CLINICAL INFECTIOUS DISEASES
卷 73, 期 2, 页码 E394-E401出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/cid/ciaa890
关键词
antibiotics; primary care; effectiveness; upper respiratory tract infections; epidemiology
资金
- Department of Health
Delaying the prescription of antibiotics for upper respiratory tract infections was associated with an increased risk of infection-related hospital admissions, regardless of the patient's predicted risk levels. Targeting delayed antibiotic prescribing to URTI patients with lower risks of complications may help improve clinical safety.
Background. This study aimed to evaluate the clinical safety of delayed antibiotic prescribing for upper respiratory tract infections (URTIs), which is recommended in treatment guidelines for less severe cases. Methods. Two population-based cohort studies used the English Clinical Practice Research Databank and Welsh Secure Anonymized Information Linkage, containing electronic health records from primary care linked to hospital admission records. Patients with URTI and prescriptions of amoxicillin, clarithromycin, doxycycline, erythromycin, or phenoxymethylpenicillin were identified. Patients were stratified according to delayed and immediate prescribing relative to URTI diagnosis. Outcome of interest was infection-related hospital admission after 30 days. Results. The population included 1.82 million patients with an URTI and antibiotic prescription; 91.7% had an antibiotic at URTI diagnosis date (immediate) and 8.3% had URTI diagnosis in 1-30 days before (delayed). Delayed antibiotic prescribing was associated with a 52% increased risk of infection-related hospital admissions (adjusted hazard ratio, 1.52; 95% confidence interval, 1.43-1.62). The probability of delayed antibiotic prescribing was unrelated to predicted risks of hospital admission. Analyses of the number needed to harm showed considerable variability across different patient groups (median with delayed antibiotic prescribing, 1357; 2.5% percentile, 295; 97.5% percentile, 3366). Conclusions. This is the first large population-based study examining the safety of delayed antibiotic prescribing. Waiting to treat URTI was associated with increased risk of hospital admission, although delayed antibiotic prescribing was used similarly between high-and low-risk patients. There is a need to better target delayed antibiotic prescribing to URTI patients with lower risks of complications.
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