Table 1.

Statistical analysis of the differential levels of DNA methylation within the CD44 gene among the MCF10A-derived cells analysed in Figure 9D. Indicated Groups of loci for comparison were tested by pairwise Student's t test (two-tailed) evaluating differences from locus to locus. The P-values of these tests for each cell line compared to MCF10A parental cells or CA1A versus DCIS are reported in the Table. The non-significant P-values are in italic.

	Comparison versus MCF10A			versus DCIS
	MCF10A(Ras)	DCIS	CA1A	CA1A
Differences on:
all loci tested	1.4E-07	2.8E-07	5.7E-04	4.3E-05
constant exons	0.001	0.107	0.127	0.298
variant region inluding introns (i10, i11, i15)	1.1E-04	5.0E-04	0.006	0.004
variant exons only	0.003	0.005	0.029	0.012
introns only	0.035	0.050	0.043	0.068