Drug Allergy Labels After Drug Allergy Investigation

Study Overview
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Brief Summary
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The aim of this study is to investigate the degree of match between the drug allergy label in the hospital's electronic health record and primary care's electronic health record among patients who previously have been drug allergy tested.

Detailed Description
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Patients who previously have been penicillin allergy tested in 2017 to 2019 at the Allergy Clinic at Gentofte Hospital is included in the study. Patients are identified through a drug allergy database at the department. A letter describing the study and the data collection process will be sent to the patients' General Practice offices (GP). Data collection: The patients GP's are contacted by telephone where the information about the drug allergy labels in their electronical medical charts are shared. On the same day as the phone contact to the GP's office, the patient's electronical health record in the hospital system is accessed in order to gain information about the current drug allergy registrations. Predictors for the explanatory analysis is collected partly through the phone call to the GP (such as numbers of patients and physicians at each GP and the electronic health system used), from the hospital electronic health record (such as number of hospital admissions since drug allergy testing) and from the drug allergy database.

Official Title
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Drug Allergy Labels in Different Electronic Health Records After Drug Allergy Investigation

Conditions
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Drug Hypersensitivity

Intervention / Treatment
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* Other: Drug allergy label status in electronic health records


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Penicillin allergy tested at the Allergy Clinic, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark in 2017-2019 Exclusion Criteria: -

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Allergy tested group<br>Patients who have completed penicillin allergy testing | Other: Drug allergy label status in electronic health records<br>* Registered drug allergy labels in primary care and hospital electronic medical charts<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Degree of matching drug allergy testing and drug allergy labels | Degree of match between allergy testing outcomes and registered drug allergy labels in primary care and hospital electronic health records | Baseline | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Degree of match between registered drug allergy labels | Degree of match between registered drug allergy labels in primary care and hospital electronic health records | Baseline | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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drug allergy, drug allergy labels, penicillin allergy labels