Table 2. Studies excluded in the meta-analysis.
| number of samples | |||
|---|---|---|---|
| First author | NT | PE | Platform a |
| Ahr [20] | 4 | 3 | University Health Network Hu19k2 (cDNA) |
| Guller [21] | 6 | 3 | Affymetrix HG U133 plus 2.0 |
| Jarvenpaa [22] | 3 | 2 | Affymetrix HG U133 plus 2.0 |
| Kang [23] | 16 | 17 | Codelink Human Whole Genome Bioarrays |
| Lee [24] | 13 | 13 | Agilent Human 4X44K Oligomicroarrays Chip |
| Liu [25] | 28 | 24 | CapitalBio, OPERON |
| Mayor-Lynn [26] | 6 | 3 | Illumina HumRef-12 v3 |
| Varkonyi [27] | 10 | 12 | Agilent Human 4X44K Oligomicroarrays Chip |
| Zhou [28] | 5 | 5 | CapitalBio, OPERON |
| 91 | 82 | ||
NT = normotensive, PE = preeclampsia
aplatform names were obtained from description in cited publication.