Table 2.

Association between high BiP mRNA levels and PrP mRNA levels

		Low BiP	High BiP	P-	n	Reference
		Mean ± SD	Mean ± SD	value
	BiP	0.80 ± 0.1	1.29 ± 0.3	≤0.001*	127	van der Vijver et al., 2002
	PrP	1.01 ± 0.5	1.24 ± 0.7	0.002*
Breast cancer	BiP	0.78 ± 0.1	1.26 ± 0.3	≤0.001*	44	Minn et al., 2005
	PrP	0.93 ± 0.4	1.09 ± 0.5	0.1
	BiP	0.76 ± 0.2	1.43 ± 0.4	≤0.001*	40	Chin et al., 2006
	PrP	1.00 ± 0.5	1.38 ± 0.6	0.003*
Breast carcinoma	BiP	0.77 ± 0.2	1.37 ± 0.4	≤0.001*	56	Neve et al., 2006
cell lines	PrP	0.99 ± 0.9	1.94 ± 1.0	0.001*