Medical education with EMR-based reminders reduces antibiotic prescribing and dispensing for respiratory tract infections in Norway

It is known that British guidelines for otitis media support delayed antibiotic prescribing [1], and other countries have guidelines to reduce certain antibiotic prescribing for otitis media, for example, France [2]. Conversely, Finnish guidelines do not [3]. A 2013 Norwegian study published in the British Journal of General Practice compares the varying effectiveness of 2 interventions in delaying primary care antibiotic prescribing for respiratory tract infections, including otitis [4].

Notwithstanding a complicated design for recruiting and assigning general practitioners across multiple sites, this article offers several interesting features. First, it compares an education-only intervention with the same education enhanced by pop-up reminders of a physician’s own prescribing patterns in the electronic medical record (EMR), a nice reinforcement of the educational intervention for participating physicians. While not a focus of this post, I would like to mention a new Penn study of adherence to guidelines on otitis media using EMRs for decision support at Children’s Hospital of Philadelphia [5]. This shows interest in implementation science combined with continuing medical education (CME) for changing physicians’ practice patterns.

The Norwegian study featured here [4] data collected and linked data on prescribed and dispensed antibiotics from (a) 1 year before and (b) 1 year during the intervention, which allowed prescribing practice patterns to be displayed to physicians in the EMR at the point of prescribing antibiotics for a respiratory tract infection. It also collected pharmacy fill rates by patients, which I find interesting because it may offer insights into patients’ (or parents’) agreement with the need for the prescription, after any access barriers to medication adherence. 

Both study arms showed slightly reduced antibiotic prescribing from baseline (pre-intervention) rates: 1% reduction vs. 4% reduction in “approximated risk” (risk ratio, RR) in the education-only vs. education-plus-EMR study arms, respectively. Both results report very tight ranges around a 95% confidence interval (CI), increasing confidence in the findings. (It is further nice to see the CI reported instead of the p value, for those who often hesitate to report CI because of many readers’ greater familiarity with the p value.) While reporting of “risk ratio” may be used as simply a convenient and appropriate way of reporting epidemiological data, it seems to me that its use for reporting educational outcomes with practice data is unusual and perhaps a comment on antibiotic prescribing for these infections as a risk.

The authors find that upper respiratory tract infection, sinusitis, and otitis “gave highest odds for delayed prescribing and lowest odds for dispensing,” which led them to conclude that the greatest potential for “savings” is greatest for these infections, a comment that brings this CME study with implementation science into the context of health utilization research. The article offers freely accessible full text, so enjoy reading the study.

References cited:

1. Centre for Clinical Practice at NICE (UK). Respiratory Tract Infections - Antibiotic Prescribing: Prescribing of Antibiotics for Self-Limiting Respiratory Tract Infections in Adults and Children in Primary Care. London: National Institute for Health and Clinical Excellence (UK); 2008 Jul. http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0010014/.
2. Levy C, Pereira M, Guedj R, et al. Impact of 2011 French guidelines on antibiotic prescription for acute otitis media in infants. Médecine Mal Infect. 2014;44(3):102-106. http://www.ncbi.nlm.nih.gov/pubmed/24630597.
3. [Update on current care guidelines: acute otitis media]. Duodecim. 2010;126(5):573-4. Finnish. http://www.ncbi.nlm.nih.gov/pubmed/20597310.
4. Hoye S, Gjelstad S, Lindbaek M. Effects on antibiotic dispensing rates of interventions to promote delayed prescribing for respiratory tract infections in primary care. Br J Gen Pract. 2013;63(616):e777-e786. http://bjgp.org/content/63/616/e777.full.pdf. [Featured Article]
5. Fiks AG, Zhang P, Localio AR, et al. Adoption of electronic medical record-based decision support for otitis media in children. Health Serv Res. 2015;50(2):489-513. http://www.ncbi.nlm.nih.gov/pubmed/25287670.  

MeSH *Major* terms: Anti-Bacterial Agents/therapeutic use*; Education, Medical, Continuing*; General Practice/statistics & numerical data*; Physician's Practice Patterns/statistics & numerical data*; Respiratory Tract Infections/drug therapy*