Table 1 Cohort demographics.

From: A longitudinal cohort study of adolescent elite footballers and controls investigating the development of cam morphology

 

Baseline

Follow-up

Individuals (hips)

Open physis

Partially open physis

Closed physis

PAQ score, mean (± SD)

Individuals (hips)

Open physis

Partially open physis

Closed physis

PAQ score, mean (± SD)

Male footballers

Age at baseline (years)

9–10

37 (73)

73

0

0

3.42 (± 0.43)

28 (56)

26

0

0

3.43 (± 0.86)

11–12

32 (64)

64

0

0

3.36 (± 0.65)

22 (44)

58

0

0

3.39 (± 0.77)

13–14

22 (44)

22

18

4

2.98 (± 0.73)

9 (18)

12

2

14

3.05 (± 0.32)

15–16

20 (40)

2

10

28

2.51 (± 0.65)

7 (14)

0

0

12

2.93 (± 0.61)

17–18

8 (16)

0

2

14

2.17 (± 0.40)

3 (6)

0

0

12

2.71 (± 0.23)

Total

119 (237)

161

30

46

3.11 (± 0.71)

69 (138)

96

2

40

3.29 (± 0.76)

Male controls

Age at baseline (years)

9–10

15 (30)

30

0

0

3.10 (± 0.46)

12 (24)

12

0

0

3.19 (± 0.77)

11–12

14 (28)

28

0

0

3.28 (± 0.55)

10 (20)

18

4

0

2.90 (± 0.81)

13–14

8 (16)

12

2

2

2.87 (± 0.59)

4 (8)

8

2

6

2.12 (± 0.67)

15–16

13 (26)

10

2

14

2.22 (± 0.64)

8 (16)

0

0

14

2.41 (± 0.87)

17–18

2 (4)

0

0

4

2.14 (± 0.44)

1 (2)

0

0

6

3.17 (± 0)

Total

52 (104)

80

4

20

2.86 (± 0.69)

35 (70)

38

6

26

2.80 (± 0.86)

Female controls

Age at baseline (years)

9–10

11 (22)

22

0

0

2.96 (± 0.51)

10 (20)

8

0

4

2.49 (± 0.80)

11–12

6 (12)

10

2

0

2.72 (± 0.76)

5 (10)

2

2

10

2.00 (± 0.51)

13–14

12 (24)

0

0

24

2.30 (± 0.56)

8 (16)

0

0

10

1.52 (± 0.38)

15–16

19 (38)

0

0

38

2.14 (± 0.65)

9 (18)

0

0

18

1.77 (± 0.41)

17–18

6 (12)

0

0

12

2.21 (± 0.58)

4 (8)

0

0

18

2.85 (± 0.96)

Total

54 (108)

32

2

74

2.42 (± 0.69)

36 (72)

10

2

60

2.07 (± 0.76)

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