Table 2 Propensity for HIAs for ball carriers and tacklers as a function of tackle height

Tackle height – all HIAs

Head/neck

16

20.17 (12.36–32.92)

Upper trunk

80

2.53 (2.03–3.15)

Mid trunk

20

1.31 (0.85–2.03)

Lower trunk

11

1.22 (0.68–2.2)

Upper leg

0

N/A

Lower leg

4

7.06 (2.65–18.81)

Total

131

2.22 (1.87–2.63)

(Above sternum)

96

2.96 (2.42–3.62)

(Below sternum)

35

1.31 (0.94–1.82)

Tackler height – tackler HIA

Head/neck

0

N/A

Upper trunk

59

1.87 (1.45–2.41)

Mid trunk

18

1.18 (0.74–1.87)

Lower trunk

9

1.00 (0.52–1.92)

Upper leg

0

N/A

Lower leg

2

3.53 (0.88–14.11)

Total

88

1.49 (1.21–1.84)

(Above sternum)

59

1.82 (1.41–2.35)

(Below sternum)

29

1.09 (0.76–1.57)

Tackler height – BC HIA

Head/neck

14

17.65 (10.45–29.80)

Upper trunk

19

0.60 (0.38–0.94)

Mid trunk

2

0.13 (0.03–0.52)

Lower trunk

0

N/A

Upper leg

0

N/A

Lower leg

0

N/A

Total

35

0.59 (0.42–0.82)

(Above sternum)

33

1.02 (0.73–1.43)

(Below sternum)

2

0.07 (0.02–0.28)