Fatalities in the Oil and Gas Extraction Industry (FOG)

Key FOG Variable Descriptions

The FOG database collects several different types of information (i.e., variables) on each fatal incident and each worker who died in the incident. Variables about the incident are those that would be common to all fatalities associated with the incident, such as the date the event occurred and the location of the incident. Other variables are specific to each fatally injured worker, such as the worker’s age, years of experience, and cause of the fatality.

Below are the definitions for key FOG variables; these are the most commonly reported variables in FOG datasets, publications, and products.

Worker level variables: Event Type

FOG event types describe how the fatal injury or illness occurred. In FOG, each fatally injured worker is assigned only one event type. In instances where two or more events occur to a single victim, precedence is given to the initial event type. For example, a worker that is struck by a piece of equipment resulting in a fall will be categorized as a struck-by incident since this event caused the fall.

The definition of each FOG event type is below. Note: The definition does not include the explanation of technical terms (see Resources for this information).

Event Type

Page last reviewed: May 8, 2020