Table 2

Mean difference from consultant group

Image	Mean distance ± SD (pixels)		p value
Image	S v. C	J v. C	p value
1	1481 ± 789	1470 ± 988	0.97
2	1051 ± 541	1559 ± 844	0.05
3	1694 ± 917	3183 ± 1365	0.001
4	477 ± 274	1642 ± 667	< 0.001
5	1133 ± 503	1610 ± 526	0.014
6	1019 ± 412	1557 ± 144	< 0.001
7	1245 ± 669	1956 ± 533	0.002
8	1711 ± 1046	1963 ± 712	0.43
9	776 ± 286	1329 ± 327	< 0.001
10	584 ± 248	1271 ± 456	< 0.001
11	1747 ± 782	2605 ± 767	0.004
12	1706 ± 683	731 ± 398	< 0.001
13	1843 ± 1282	1296 ± 462	0.13
14	1384 ± 495	1861 ± 596	0.020
15	1766 ± 1178	2068 ± 780	0.40
16	774 ± 332	1685 ± 843	< 0.001

C = consultant surgeons; J = junior trainees; S = senior trainees; SD = standard deviation.