Samenvatting
Helmet effectiveness in preventing fatalities to motor-cycle drivers and passengers was determined by applying the double pair comparison method to the Fatal Accident Reporting System (FARS) data for 1975 through 1984. Motor-cycle helmet effectiveness estimates are found to be relatively unaffected by performing the analyses in a number of ways different from that indicated above. It was found that helmets are (27 ± 9) % effective in preventing fatalities to motorcycle riders (the error is one standard error) .