Coverage and Validity of the Swedish Registry of Cardiopulmonary Resuscitation Regarding In-hospital Cardiac Arrest

Study Overview
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Brief Summary
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The study will have an observational retrospective cross-sectional design. Patient records and hospital administrative systems at 10 hospitals in Sweden will be searched using ICD-codes to find all patients treated for an in-hospital cardiac arrest (IHCA) during the time period of 20180101 to 20191231. All found patients will be cross-checked against reported patients in the Swedish Registry of Cardiopulmonary Resuscitation (SRCR). Any differences in patient characteristics or regarding situation factors between reported and non-reported patients will be evaluated. Non-reported patients will be retrospectively reported to the registry. An incidence of IHCA will be calculated using the number of patients treated for IHCA divided by number of hospital admissions during the specific time period. Selected variables will be evaluated regarding compliance to report and regarding concordance with patient records. All missing data will be described and evaluated. Local reporting procedures at each hospital will be described and evaluated regarding compliance to report and regarding missing data.

Official Title
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Coverage and Validity of the Swedish Registry of Cardiopulmonary Resuscitation Regarding In-hospital Cardiac Arrest

Conditions
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In-hospital Cardiac Arrest

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: All patients after the neonatal period that have been treated for an in-hospital cardiac arrest. Exclusion Criteria: Patients with an in-hospital cardiac arrest that is not treated (do not attempt resuscitation) or patients in the neonatal period.

Ages Eligible for Study
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Minimum Age: 29 Days

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Non-reported patients treated for in-hospital cardiac arrest<br> | |
| Reported patients treated for in-hospital cardiac arrest<br> | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Proportion of reported patients treated for in-hospital cardiac arrest | To evaluate the proportion of patients treated for in-hospital cardiac arrest that are reported to the SRCR | During hospital stay (retrospective observation january 1 2018 to december 31 2019) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of in-hospital cardiac arrest | To calculate an incidence of number of patients treated for in-hospital cardiac arrest based on number of hospital admissions during a specific time period. | During hospital stay (retrospective observation january 1 2018 to december 31 2019) | 
| Patient characteristics | To evaluate possible differences in patient characteristics or situation factors between reported and non-reported patients treated for in-hospital cardiac arrest. | During hospital stay (retrospective observation january 1 2018 to december 31 2019) |