Table 3 Comparison of proportions of ankle injuries by sport and diagnosis among individuals treated in US emergency departments from 2009 through 2013 (NEISS) and seen by athletic trainers in high school (HS RIO) and collegiate (NCAA-ISP) settings during the 2009/10–2013/14 academic years

31.2 (30.0–32.5)

18.0 (16.3–19.6)

1.7^b

41.0 (39.1–42.8)

11.0 (9.7–12.3)

3.6^d

2.2 (1.8–2.5)

3.5 (2.9–4.0)

0.6^b

2.0 (1.5–2.5)

2.5 (2.0–3.0)

0.8

3.3 (2.9–3.8)

4.3 (3.7–5.0)

0.8

2.0 (1.5–2.5)

1.8 (1.2–2.4)

1.1

15.3 (14.3–16.2)

41.0 (37.9–44.1)

0.4^b

12.8 (11.6–14.1)

65.8 (63.7–67.9)

0.2^d

12.5 (11.6–13.4)

9.9 (9.0–10.9)

1.3^b

8.7 (7.7–9.8)

4.8 (4.1–5.5)

1.8^d

2.1 (1.7–2.5)

0.7 (0.4–0.9)

3.0^b

4.2 (3.4–4.9)

0.4 (0.2–0.6)

10.4^d

1.9 (1.6–2.3)

0.6 (0.3–0.9)

3.2^b

3.2 (2.6–3.9)

0.2 (0.0–0.3)

18.8^d

7.3 (6.6–8.0)

7.2 (6.1–8.2)

1.0

7.6 (6.6–8.6)

8.1 (7.0–9.3)

0.9

11.1 (10.3–11.9)

8.2 (6.8–9.6)

1.4^b

11.0 (9.8–12.2)

2.9 (2.3–3.6)

3.7^d

8.7 (7.9–9.4)

4.8 (4.0–5.6)

1.8^b

4.7 (3.9–5.5)

1.8 (1.4–2.3)

2.6^d

1.4 (1.1–1.7)

0.2 (0.1–0.4)

7.0^b

0.7 (0.4–1.0)

0.0 (0.0–0.0)

56.8^d

3.0 (2.6–3.5)

1.6 (1.3–1.9)

1.9^b

2.1 (1.6–2.6)

0.6 (0.3–0.9)

3.6^d

1.8 (1.4–2.1)

2.2 (1.9–2.6)

0.8

4.6 (3.8–5.4)

2.4 (2.0–2.8)

1.9^d

0.3 (0.1–0.4)

0.2 (0.1–0.3)

1.5

0.1 (0.0–0.3)

0.3 (0.2–0.4)

0.3

3.8 (3.3–4.3)

9.7 (8.6–10.8)

0.4^b

0.8 (0.5–1.1)

9.3 (8.3–10.3)

0.1^d

0.0 (0.0–0.0)

0.1 (0.0–0.2)

0.0

0.1 (0.0–0.2)

1.4 (1.1–1.6)

0.1^d

92.2 (90.7–93.6)

81.8 (76.5–87.1)

1.1^b

89.3 (88.2–90.5)

80.4 (75.5–85.2)

1.1^d

2.0 (1.0–3.1)

6.0 (0.3–11.7)

0.3

5.0 (4.2–5.8)

6.2 (1.2–11.3)

0.8