Signs of concussion and player outcome
| No. of PCEs (% of total) | PCEs professionally assessed (n) | PCEs not professionally assessed | Professionally assessed PCEs with same game return to play (RTP) | |||||||||
| No. of concussion signs | WC | EC | WC | WC | EC | WC | WC | EC | WC | WC | EC | WC |
| 2014 | 2016 | 2018 | 2014 | 2016 | 2018 | 2014 | 2016 | 2018 | 2014 | 2016 | 2018 | |
| 0 | 3 (3.7) | 2 (2.9) | 0 | 0 | 1 (5.3) | 0 | 3 (5.9) | 1 (2.0) | 0 | 0 | 1 (5.3) | 0 |
| 1 | 11 (13.5) | 5 (7.2) | 6 (6.9) | 1 (3.3) | 0 | 0 | 10 (19.6) | 5 (10.0) | 6 (10.7) | 1 (3.6) | 0 | 0 |
| 2 | 45 (55.6) | 48 (69.6) | 60 (69.0) | 12 (40.0) | 9 (47.4) | 17 (54.8) | 33 (64.7) | 39 (78.0) | 43 (76.8) | 12 (42.9) | 9 (47.4) | 16 (57.1) |
| 3 | 20 (24.7) | 13 (18.8) | 20 (23.0) | 15 (50.0) | 8 (42.1) | 13 (41.9) | 5 (9.8) | 5 (10.0) | 7 (12.5) | 13 (46.9) | 8 (42.1) | 12 (41.4) |
| 4 or more | 2 (2.5) | 1 (1.4) | 1 (1.2) | 2 (6.7) | 1 (5.3) | 1 (3.2) | 0 | 0 | 0 | 2 (7.1) | 1 (5.3) | 0 |
| Total (%) | 81 (100) | 69 (100) | 87 (100) | 30 (37) | 19 (27.5) | 31 (35.6) | 51 (63) | 50 (72.5) | 56 (64.4) | 28 (93.3) | 19 (100) | 28 (90.3) |
EC, Euro Cup; PCE, potential concussive event; WC, World Cup.