In this study, the investigators aimed to analyze the demographic characteristics, patterns of injury, and mortality after free fall in the emergency department of the National Taiwan University Hospital, and the affiliations, Hsin-Chu branch, and Yun-lin branch.

Falls from a height are the leading cause of accidental deaths. The mechanism of free-fall injury is abrupt vertical deceleration and the severity is dependent on the height, body weight, posture and contact area…etc. Most victims presented to the emergency department with major trauma, so initial evaluation and management are crucial for survival. The knowledge of the unique pattern of injuries helps clinicians to facilitate the diagnosis.

Inclusion Criteria:

patients aged more than 20 years after free falls in the emergency department of the National Taiwan University Hospital, and the affiliations, Hsin-Chu branch, and Yun-lin branch.

Exclusion Criteria:

patients aged less than 20 years after free fall in the emergency department of the National Taiwan University Hospital, and the affiliations, Hsin-Chu branch, and Yun-lin branch.

patients aged more than 20 years after free falls in the emergency department of the National Taiwan University Hospital, and the affiliations, Hsin-Chu branch, and Yun-lin branch.