Table 1.

 Results of supervised AM of IHC stained SLN biopsy specimens originally reported as N0 by manual examination

	Institute I	Institute II
Patients	34	40
Slides	187	216
Scored positive by AM (no of slides)	2	7
Scored positive by AM (no of patients)	2	5
Slides positive by supervised AM (all confirmed)	1.1% (0.5%)*	3.2%
Patients positive by supervised AM (all confirmed)	5.9% (2.9%)*	12.5%

*One classification was uncertain; including this result among the positives gives rise to the first percentage but not including it gives rise to the second number in parenthesis (recommended according the UICC classification for haematoxylin and eosin stained sections).

AM, automated analysis; IHC, immunohistochemistry; SLN, sentinel lymph node.