Table 4.

Summary of microarray (U133Plus2, Affymetrix) expression profiling experiments for skeletal muscle biopsies of DM patients (DM1, n = 10; DM2, n = 20) and normal controls (n = 6)

Comparisona	No. probe sets/unique genes dysregulated	DChip-calculated FDR with 50 permutations (%)b
DM1 versus N	27/21	3.7
DM2 versus N	37/27	2.7
(DM1 + DM2) versus N	36/28	2.8
DM1 versus DM2	3/3	0

Analysis focused on muscle-specific genes using an annotated list of 327 probe sets. For a complete listing and analysis expression values, see Supplemental Table S2

^aN normal controls

^bUsing the default number of permutations, DChip automatically calculates a false-discovery rate (FDR)