Table 1.

NNMT expression in breast hyperplasia, breast cancer, and paracancerous tissues

Tissues	n	NNMTh (%)	Pearson’s χ2	P
Breast hyperplasia	20	2 (10.0)	13.779	< 0.001a
Paracancerous tissues	60	8 (13.3)	29.581	< 0.001b
Breast cancer	165	89 (53.9)	38.491	< 0.001c

NNMT^h NNMT high expression

^aBreast hyperplasia versus breast cancer

^bParacancerous tissues versus breast cancer

^cAmong the three groups