Drowning in Denmark: A Registry-based Study of Fatal and Non-fatal Drowning From 2016 to 2023
- Conditions
- Drowning
- Interventions
- Other: Drowning incident
- Registration Number
- NCT05425537
- Lead Sponsor
- Prehospital Center, Region Zealand
- Brief Summary
Using nationwide data from the prehospital electronic health records from 2016 to 2023, this registry-based cohort study aims to establish a nationwide epidemiological profile of non-fatal and fatal drowning patients in Denmark in adherence with the Utstein Style For Drowning (USFD) recommended guidelines for uniform reporting of data from drowning. This includes reporting the annual incidence rates per 100,000 person-years, assessing the associations between predefined prognostic variables and 30-day survival, and reporting the spatial distribution of drowning incidents presented on a map of Denmark.
- Detailed Description
Purpose
The purpose of this study is to establish a nationwide epidemiological profile of non-fatal and fatal drowning patients in Denmark which can be used to target educational, preventative, rescue, or treatment strategies to reduce the number of fatal and non-fatal drowning incidents in Denmark.
Objectives
The primary objective is to estimate the yearly incidence rates of drowning patients in Denmark treated by the Danish Emergency Medical Services from 2016 to 2023. The secondary objective is to report the associations between predefined prognostic variables and 30-day survival.
Study design
A nationwide registry-based study with data from the Danish Drowning Cohort (extracted from the prehospital electronic health records using syndromic surveillance and extensive manual validation) from 2016 to 2023 with 30-day follow-up.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 1664
Not provided
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Fatal drowning Drowning incident Fatal drowning incident where the patient died because of the drowning process Non-fatal drowning Drowning incident Non-fatal drowning incident where the patient was drowning and can be ascertained to have been experiencing either mild, moderate, or severe respiratory impairment immediately after the drowning process ended but survived.
- Primary Outcome Measures
Name Time Method Annual drowning incidence rates per 100,000 person-years from 2016-2023 Counts of fatal and non-fatal drowning incidents will be obtained between 2016-2023. The primary objective is to estimate the annual incidence of fatal and non-fatal drowning patients in Denmark treated by the prehospital emergency medical services from 2016 to 2023 and will be reported as the annual number of cases per 100,000 person-years.
30-day survival following drowning incidents in Denmark from 2016-2023 30-day follow-up after the drowning incident The primary outcome is 30-day survival (alive/dead).
- Secondary Outcome Measures
Name Time Method Association between prognostic variables and 30-day survival From 2016-2023 This outcome will explore predefined prognostic variables associated with 30-day survival after a drowning incident. The following risk factors will be analysed using multivariable logistic regression models and presented as odds ratios (ORs) with 95% confidence intervals (CIs): witnessed status, sex, age, OHCA, submersion duration, season, location.
Map of fatal and non-fatal drowning incidents in Denmark from 2016-2023 From 2016-2023 Showing a map of geographical localization of drowning in Denmark in the study period indicating 30-day mortality and survival
Trial Locations
- Locations (1)
Prehospital Center
🇩🇰Næstved, Region Zealand, Denmark