Table 2 Comparison between determination of mitotic index (MI) on phosphorylated histone H3 (PPH3)‐stained breast adenocarcinomas by visual and automatic computer‐assisted methods.

Cases	Visual MI	Automatic MI	p Value
1	0.52	0.51	NS*
2	0.52	0.48	NS*
3	0.82	0.86	NS*

NS, not significant.

Results are expressed as the mean of MI assessed after PPH3 staining by visual and automatic computer‐assisted methods in 10–14 HPF per case.

*No statistical difference was found between these two methods (Wilcoxon's non‐parametric paired test).