A recent analysis published by Hunter College professors revealed that more than 500 New York City residents suffer severe injuries after being struck by cyclists. Though the number seems small in comparison to the number of pedestrians injured by cars, it has been growing rapidly over recent years.

The survey studied hospital data from the State Department of Health gathered between 2007 and 2010. Results showed that 1,000 pedestrians were treated at hospitals every year after being hit by cyclists, 55% of whom were residents of New York.

An additional study, conducted by Professors Peter Tuckel and William Milczarski, found that the number of pedestrians treated in hospitals annually was not much higher than 1,000. Dr. Tuckel explains that these figures represent “the tip of the iceberg,” because they list only the pedestrians who ended up at the hospital, and not those who then visited a doctor’s office or clinic.