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Table 3 Inter-observer agreement rates on the SAs according to skeletal classification as not mature or mature and for the total number of examinations among female adolescent soccer players (n = 100)

From: Reproducibility and inter-observer agreement of Greulich-Pyle protocol to estimate skeletal age among female adolescent soccer players

Bones Age at mature state1 Not maturea Maturea Total
n D
(n)
A n D
(n)
A n D
(n)
A
n % n % n %
Radius 17 70 8 62 89% 30 0 30 100% 100 8 92 92%
Ulna 17 52 3 49 94% 48 0 48 100% 100 3 97 97%
Capitate 13 5 2 3 60% 95 2 93 99% 100 4 96 96%
Hamate 13 5 3 2 40% 95 6 89 94% 100 9 91 91%
Triquetral 13 4 4 0 0% 96 6 90 94% 100 10 90 90%
Pisiform a)          100 0 100 100%
Lunate 13 11 7 4 36% 89 0 89 100% 100 7 93 93%
Scaphoid 13 22 19 3 14% 78 0 78 100% 100 19 81 81%
Trapezium 13 17 15 2 10% 83 1 82 99% 100 16 84 84%
Trapezoid 13 5 4 1 20% 95 2 93 98% 100 6 94 94%
Adductor Sesamoid b)          100 0 100 100%
Metacarpal I 15 4 1 3 75% 96 0 96 100% 100 1 99 99%
Metacarpal II 15 26 4 22 85% 74 3 71 96% 100 7 93 93%
Metacarpal III 15 30 8 22 73% 70 0 70 100% 100 8 92 92%
Metacarpal IV 15 30 10 20 67% 70 0 70 100% 100 10 90 90%
Metacarpal V 15 32 13 19 59% 68 0 68 100% 100 13 87 87%
Proximal phalange I 15 53 4 49 92% 47 5 42 89% 100 9 91 91%
Proximal phalange II 15 14 4 10 71% 86 0 86 100% 100 4 96 96%
Proximal phalange III 15 16 9 7 44% 84 0 84 100% 100 9 91 91%
Proximal phalange IV 15 17 6 11 65% 83 0 83 100% 100 6 94 94%
Proximal phalange V 15 17 3 14 82% 83 7 76 92% 100 10 90 90%
Medial phalange II 15 16 8 8 50% 84 0 84 100% 100 8 92 92%
Medial phalange III 15 18 9 9 50% 82 0 82 100% 100 9 91 91%
Medial phalange IV 15 15 5 10 67% 85 1 84 99% 100 6 94 94%
Medial phalange V 15 15 11 4 73% 85 6 79 93% 100 17 83 83%
Distal phalange I 15 65 4 61 94% 35 0 35 100% 100 4 96 96%
Distal phalange II 15 65 4 61 94% 35 2 33 94% 100 6 94 94%
Distal phalange III 15 65 4 61 94% 35 1 34 97% 100 5 95 95%
Distal phalange IV 15 65 4 61 94% 35 1 34 97% 100 5 95 95%
Distal phalange V 15 65 2 63 97% 35 0 35 100% 100 2 98 98%
Total disagreement. n   819 178 641   1981 43 1938   3000 221 2779  
%      78.3%     97.8%     92.6%
  1. askeletal maturity status by observer 2; D (disagreement between observer 1 and observer 2); A (agreement between observer 1 and observer 2)
  2. 1Mature state defined as detailed in Radiograph Atlas of Skeletal Development of the Hand and Wrist