Table 9.

Contrastors differentiating the negative cases in N^--- from the negative cases outside N^---

		Grade	ERp	Lymphocytic infiltrate
N---	Average	1.75	78.75	0.00
	CI (95%)	1.43	61.60	0.00
		2.07	95.90	0.00
Positive cases outside N---	Average	2.42	57.22	0.14
	CI (95%)	2.17	44.98	0.02
		2.67	69.46	0.25

CI, confidence interval; ERp, estrogen receptor.