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Table 3 Cross-tabulations of maturity status classifications based on assessments of observers A and B among male tennis players for the total sample (n = 97)

From: Intra-observer reproducibility and inter-observer agreement of Fels skeletal age assessments among male tennis players 8–16 years

Observer A (Time moment 1)

Maturity Status (Time moment 2)

Total

Late

Average

Early

Mature

Late

10

1

0

0

11

Average

2

44

2

0

48

Early

0

3

34

0

37

Mature

0

0

0

1

1

Total

12

48

36

1

97

Observer B (Time moment 1)

Maturity Status (Time moment 2)

Total

Late

8

3

0

0

11

Average

3

45

4

1

53

Early

0

1

29

1

31

Mature

0

0

0

2

2

Total

11

49

33

4

97

Maturity Status (Observer A)a

Maturity Status (Observer B)a

Total

Late

Average

Early

Mature

Late

10

2

0

0

12

Average

1

44

1

2

48

Early

0

3

32

1

36

Mature

0

0

0

1

1

Total

11

49

33

4

97

  1. Bold values indicate the same maturity status classification with each method of SA assessment
  2. aTime-moment 2
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BMC Pediatrics

ISSN: 1471-2431

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