Parachute use to prevent death and major trauma related to gravitational challenge: systematic review of randomised controlled trials

To determine whether parachutes are effective in preventing major trauma related to gravitational challenge.

Systematic review of randomised controlled trials. DATA SOURCES: Medline, Web of Science, Embase, and the Cochrane Library databases; appropriate internet sites and citation lists. STUDY SELECTION: Studies showing the effects of using a parachute during free fall. MAIN OUTCOME MEASURE: Death or major trauma, defined as an injury severity score > 15.