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Table 3 Propensity for HIAs as a function of the ball carriersā€™ evasion methods

From: Tackle Risk Factors for Head Injury Assessments (HIAs) in Sub-Elite Rugby League and Recommendations for Prevention: Head Contacts from Upright Tackles Increase the HIA Risk to Both Ball Carrier and Tackler

Ball carrier evasion

HIA events

Propensity (HIAs per 1,000 events)

BC evasion method ā€“ all HIAs

None

28

3.73 (2.58ā€“5.40)

Hand fend

2

0.71 (0.18ā€“2.84)

Forearm bumper

55

2.77 (2.13ā€“3.61)

Shoulder

4

7.43 (2.79ā€“19.80)

Ball bump

3

5.57 (1.80-17.27)

Lean/bend torso

6

1.13 (0.51ā€“2.52)

Twist-spin

12

1.82 (1.03ā€“3.20)

Side-on

0

N/A

Footwork/step

18

1.38 (0.87ā€“2.19)

Ducked head

1

0.71 (0.10ā€“5.04)

Jumping

1

2.35 (0.33ā€“16.68)

Unknown

1

35.29 (4.97-250.54)

Total

130

2.20 (1.85ā€“2.61)

BC evasion method ā€“ tackler HIAs

None

11

1.47 (0.81ā€“2.65)

Hand fend

1

0.36 (0.05ā€“2.56)

Forearm bumper

39

1.96 (1.43ā€“2.68)

Shoulder

4

7.43 (2.79ā€“19.80)

Ball bump

2

3.72 (0.93ā€“14.87)

Lean/bend torso

4

0.75 (0.28-2.00)

Twist-spin

11

1.67 (0.92ā€“3.02)

Side-on

0

N/A

Footwork/step

15

1.15 (0.69ā€“1.91)

Ducked head

0

N/A

Jumping

0

N/A

Unknown

1

35.29 (4.97-250.54)

Total

88

1.49 (1.21ā€“1.84)

BC evasion method ā€“ BC HIAs

None

12

1.60 (0.91ā€“2.82)

Hand fend

1

0.36 (0.05ā€“2.56)

Forearm bumper

16

0.81 (0.50ā€“1.32)

Shoulder

0

N/A

Ball bump

1

1.86 (0.26ā€“13.20)

Lean/bend torso

2

0.38 (0.10ā€“1.52)

Twist-spin

1

0.15 (0.02ā€“1.06)

Side-on

0

N/A

Footwork/step

1

0.08 (0.01ā€“0.57)

Ducked head

1

0.71 (0.10ā€“5.04)

Jumping

0

N/A

Unknown

0

N/A

Total

35

0.59 (0.42ā€“0.82)

  1. Note BC: ball carrier; HIA: head injury assessment; N/A: not applicable