. 2016 Sep 1;6(7):721–734. doi: 10.1055/s-0036-1586744

Table 4. Proportion of catastrophic cervical spine injuries among American football players by activity.

Study (year)	Making tackle (%)	Being tackled (%)	Blocking (%)	Being blocked (%)	Other (%)
National Football League (NFL)	29	21	14	14	21
Collegiate football
Mueller (2012)¹⁶	67	10	5	1	17
Boden (2006)¹⁴	80	10	6	–	4