Table 2.

Intra-observer reliability

	Measures	ICC	95 % CI		Significance
			Lower bound	Upper bound
Observer 1	NSA	0.898	0.853	0.930	p < 0.001
	CE	0.657	0.529	0.756	p < 0.001
	AI	0.721	0.609	0.805	p < 0.001
Observer 2	NSA	0.931	0.895	0.955	p < 0.001
	CE	0.730	0.618	0.813	p < 0.001
	AI	0.702	0.587	0.789	p < 0.001
Observer 3	NSA	0.893	0.826	0.932	p < 0.001
	CE	0.699	0.274	0.855	p < 0.001
	AI	0.804	0.721	0.863	p < 0.001