From: Publicly available data sources in sport-related concussion research: a caution for missing data
Pro-football-reference.com | NFL.com | |||
---|---|---|---|---|
Incident SRC | Injured players | Incident SRC | Injured players | |
n | n | n | n | |
2015 | 194 | 177 | 202 | 178 |
2016 | 140 | 124 | 162 | 130 |
2017 | 154 | 137 | 138 | 133 |
2018 | 104 | 86 | 89 | 83 |
2019 | 102 | 98 | 69 | 61 |