Table 1.
Characteristics of two microarray datasets included in this study.
| Data set | E-MEXP-2257 | GSE21545 |
|---|---|---|
| Reference | 12 | 13 |
| Technology used | Affymetrix GeneChip HG-U133A | Affymetrix GeneChip HG-U133 Plus 2 |
| Number of transcripts analysed | 18,400 | 47,000 |
| Sample analysed | Carotid plaque biopsies | Carotid plaque biopsies |
| Number of patients | 22 | 126 |
| Number of symptomatic patients | 13 (59%) | 25 (20%) |
| Age (years) | 64 ± 8 | 71 ± 9 |
| Number of females | 6 (27%) | 28 (22%) |
| Number of current or previous smokers | 6 (27%) | 62 (49%) |
Age, calendar age at entry-to-study presented as mean ± standard deviation (SD).