The outcome of interest, expressed as a binary variable, concerns the occurrence of an Accident and Incident Data System (AIDS) event, which can include anything from a major aircraft accident to a minor incident with only slight damage. The covariate of interest, a continuous variable, indicates the number of flight hours over the last six months self-reported by the airmen at the time of their last medical exam. The results should give us insight as to whether the number of accumulated flight hours over the last six months is associated with the occurrence of an AIDS event. The question of interest is represented in equation (6), where Y represents a binary outcome, with a one and zero indicating the occurrence or lack of an AIDS event, respectively.
