Table 2.

Correlation between the maturity parameters

Between	Assessmenta	Boys		Girls
		G	P value	G	P value
Conditional correlationb
Radius and Olecranon	First	0.81	<0.001c	0.83	<0.001c
	Second	0.82	<0.001c	0.85	<0.001c
	Overall	0.81	<0.001c	0.84	<0.001c
Radius and Digital	First	0.77	<0.001c	0.74	<0.001c
	Second	0.74	<0.001c	0.79	<0.001c
	Overall	0.76	<0.001c	0.76	<0.001c
Ulna and Olecranon	First	0.78	<0.001c	0.82	<0.001c
	Second	0.81	<0.001c	0.84	<0.001c
	Overall	0.79	<0.001c	0.83	<0.001c
Ulna and Digital	First	0.76	<0.001c	0.73	<0.001c
	Second	0.76	<0.001c	0.77	<0.001c
	Overall	0.75	<0.001c	0.74	<0.001c
Olecranon and Digital	First	0.84	<0.001c	0.85	<0.001c
	Second	0.79	<0.001c	0.87	<0.001c
	Overall	0.81	<0.001c	0.86	<0.001c
Correlation according to level of experience for overall (first and second) assessment
Radius and Olecranon	Beginner	0.78	<0.001c	0.77	<0.001c
	Intermediate	0.89	<0.001c	0.88	<0.001c
	Experienced	0.76	<0.001c	0.88	<0.001c
Radius and Digital	Beginner	0.64	<0.001c	0.62	<0.001c
	Intermediate	0.89	<0.001c	0.88	<0.001c
	Experienced	0.74	<0.001c	0.78	<0.001c
Ulna and Olecranon	Beginner	0.68	<0.001c	0.75	<0.001c
	Intermediate	0.89	<0.001c	0.87	<0.001c
	Experienced	0.82	<0.001c	0.88	<0.001c
Ulna and Digital	Beginner	0.63	<0.001c	0.60	<0.001c
	Intermediate	0.85	<0.001c	0.84	<0.001c
	Experienced	0.80	<0.001c	0.78	<0.001c
Olecranon and Digital	Beginner	0.74	<0.001c	0.77	<0.001c
	Intermediate	0.86	<0.001c	0.90	<0.001c
	Experienced	0.84	<0.001c	0.90	<0.001c

G, gamma’s coefficient.

^aUsing Goodman and Kruskal’s gamma with Bonferroni correction.

^bWhen experience of the rater was introduced as a control.

^cStatistical significance at P < 0.05.