Journal of Sports Medicine / 2017 / Article / Tab 1

Research Article

Concussion Incidence and Recurrence in Professional Australian Football Match-Play: A 14-Year Analysis

Table 1

Descriptive results for concussion incidence considering time of season, environmental conditions, loss of consciousness, and return to play ( players).

Condition (number of games)Number of concussionsIncidence rate per 1000 pmh (95% CI range)

Total (333)14017.6 (14.77–20.72)

Regular season (308)13017.6 (14.73–20.94)
Finals (25)1016.7 (8.01–30.70)

Day (183)7316.6 (13.03–20.90)
Night (150)6718.6 (14.42–23.64)

Wet (52)1310.4 (5.55–17.81)
Dry (281)12718.8 (15.70–22.41)

Loss of consciousness concussion17 2.1 (1.24–3.41)
Non-loss of consciousness concussion12315.4 (12.82–18.41)

Did not return to play in same game27
Cleared and returned to play in same game113
 (i) Returned to play for 1 quarter48
 (ii) Returned to play for 2 quarters32
 (iii) Returned to play for 3 quarters33

Note. pmh: player match hours.

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