Table 3.

Pairwise interobserver agreement for the results of ER staining according to the kappa statistic

Observer	Observer
	2	3	4	5	6	7	8
1	0.864	0.773	0.582	0.834	0.787	0.888	0.886
2		0.751	0.604	0.749	0.769	0.813	0.806
3			0.544	0.740	0.800	0.788	0.836
4				0.695	0.731	0.748	0.544
5					0.852	0.947	0.786
6						0.948	0.846
7							0.837