Epidemiological Study of Out-of-hospital Cardiac Arrest in Shenzhen

The epidemiology of out-of-hospital cardiac arrest (OHCA) is a significant public health issue, and large-sample studies on such events within China are relatively limited. This study utilizes the Utstein model to evaluate and analyze the epidemiological characteristics of OHCA in Shenzhen from 2011 to 2018. By reviewing ambulance dispatch records and prehospital medical records from the Shenzhen Emergency Medical Center between 2011 and 2018, the study analyzed epidemiological characteristics and reported the results. The main indicators of the study include demographic characteristics such as the gender, age, location of occurrence, key time points, vital signs, chief complaints, and diagnoses of the cases. It also covers prehospital emergency treatment processes, including whether bystanders performed CPR, initial electrocardiogram results, intravenous access establishment, use of epinephrine, defibrillation, tracheal intubation, and other interventions, as well as the outcomes of resuscitation.

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Key information

Conditions

Out-Of-Hospital Cardiac Arrest Cardiovascular Diseases Heart Arrest Heart Diseases

Age range

18 year–120 year

Sex eligibility

All sexes

Study type

Observational

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Cases with secondary diagnoses containing only the diagnostic keywords "cardiac arrest" and "sudden death"

Exclusion criteria

1. Cases with suicide, drowning, advanced cancer, trauma, shock, poisoning, cerebrovascular accidents, etc. 2.Cases with duplicate records for gender, age, time of call, pick-up and drop-off address, and initial diagnosis.

Treatment and study plan

Primary outcomes

Crude incidence rate

Time frame: 2011-01-01 to 2018-12-31

The frequency of new cases of a disease in a given population over a given period of time.
Age standardized incidence rate

Time frame: 2011-01-01 to 2018-12-31

Incidence rates after removing the influence of age, and incidence rates normalised by age.
Annual percentage change

Time frame: 2011-01-01 to 2018-12-31

Indicates the change from one year to the next within a segment at a constant percentage on a log-linear model for evaluating trends within segments.

Sponsors and collaborators

Lead sponsor

Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Other

Registry information

Important dates

Study start: 2011
Primary completion: 2018
Study completion: 2018
First posted: Mar 26, 2025
Registry last updated: Mar 26, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed