Research Studies/Projects

Current | Completed

Flying After Diving (FAD) Calibration Study

The FAD Calibration study is designed to determine how exercise, either dry or immersed, affects the minimum safe waiting period before flying after diving.

Risk/Benefit of PFO Closure

Patent foramen ovale (PFO) is associated with an increased risk of decompression sickness (DCS), but there is no consensus among experts whether and how divers with PFO should be treated. Currently divers with PFO who choose to continue diving but want to reduce their risk of DCS have two options: undergo PFO closure or dive more conservatively. The study question is: Are divers with PFO who underwent the closure procedure better off than divers with PFO who continue diving without the closure?

Sudafed and Risk of Oxygen Toxicity

Sudafed is an over-the-counter drug used extensively among divers to enhance ear equalization during a dive. This study investigates whether Sudafed increases the risk of oxygen toxicity in an animal model.

Extreme Diving Field Study

The expected growth of new participants in technical diving may result in more accidents and fatalities. This study analyzes various aspects of safety including, but not limited to, decompression safety, physical fitness requirements and cardiovascular effects of extreme diving. The purpose of the study is to explore the stress of extreme dive exposures on divers and the requirements for participation.

Incidents and Accidents in Compressed Air Diving

This project includes monitoring of diving incidents, injuries and fatalities in air, nitrox and mixed-gas diving. Data has been collected from participants or witnesses of mishaps who may report online, from first responders, medical providers and investigative agencies. DAN compiles case reports and includes data from these reports in DAN's Annual Diving Report.

Incidents and Accidents in Breath-Hold Diving

The growing popularity of breath-hold diving led to the creation of the breath-hold incident database in 2005. Both fatal and nonfatal cases are collected to identify risks and aid in public education. DAN compiles case reports and includes data from these reports in DAN's Annual Diving Report.

DAN Membership Health Survey (DMHS)

Every three years the average age of recreational divers (i.e. DAN Members) increases by one year, and they have more chronic diseases than in the past. The purpose of the DAN Member Health Survey is to establish the prevalence of cardiovascular risk factors, diabetes and asthma, access to primary health care and the diving practices of DAN Members. The results of the study will help the diving community decide about preventive measures for injuries and fatalities and will help DAN to focus its research and education efforts.

Project Dive Exploration (PDE)

Project Dive Exploration is an observational research of dive exposure and outcomes. The study collects and analyzes electronic dive profiles as recorded by a depth/time recorder for the purpose of conducting statistical analysis of the risks of decompression sickness. Divers report their health status 48 hours after exiting the water.

Database of Dive Exposure and Dive Outcomes

DAN has obtained data from the U.S. Navy, Duke University, Project Dive Exploration (including DAN Europe's Dive Safety Lab) and the Institute of Nautical Archaeology. Data are being converted to a format that will be used as a reference database for calibration and evaluation of decompression algorithms. Divers using one of many compatible dive computers may contribute their electronic dive log data to PDE.

Diver Physical Fitness Study

Physical fitness is an important but poorly documented factor in diver performance. Investigations will assess the physical fitness of divers and the physical fitness required for typical tasks completed by divers.

Oxygen Use Survey Card

DAN Research is studying the effectiveness of oxygen as first aid for diving emergencies. Cards for reporting emergency oxygen use may be downloaded for submission to DAN.

Fatality Database

DAN collects data on diving fatalities of recreational divers in the United States, Canada and diving destinations frequented by U.S. and Canadian divers. DAN compiles case reports and includes the data in DAN's Annual Diving Report.