Table 1.

Coefficient of variation

Intraobserver CV
		CV right observer 1	CV left observer 1	CV right observer 2	CV left observer 2
N	Valid	191	191	191	191
	Missing	21	21	21	21
CV (%)		2.1757	2.2448	2.3184	2.2448
Standard deviation		2.31004	1.92711	1.50358	2.46667
Minimum		0.00	0.00	0.00	0.00
Maximum		23.57	15.71	6.73	28.28

Interobserver CV
		CV left observer 1	CV right observer 2
N	Valid	191	191
	Missing	21	21
CV		1.2515	1.2087
Standard deviation		1.37297	1.50436
Minimum		0.00	0.00
Maximum		7.79	10.48