Table 1.
Demographic information for ECHO participants included in this study
| Cord blood (N = 1938) | CBMC (N = 142) | Blood spot (N = 701) | Placenta (N = 579) | Buccal (N = 552) | PBMC (N = 290) | Peripheral whole blood (N = 353) | Total (N = 4555) | |
|---|---|---|---|---|---|---|---|---|
| Self-reported race | ||||||||
| American Indian or Alaska Native | 11 | < 5* | 6 | < 5* | < 5* | < 5* | < 5* | 24 |
| Asian | 31 | < 5* | 21 | 18 | 19 | < 5* | < 5* | 94 |
| Black | 364 | 112 | 124 | 122 | 99 | 117 | 50 | 988 |
| Hawaiian or other Pacific Islander | < 5* | < 5* | < 5* | < 5* | 7 | < 5* | < 5* | 9 |
| Multiple race | 176 | 9 | 65 | 38 | 104 | 11 | 153 | 556 |
| Other race | 94 | < 5* | 12 | 16 | 36 | < 5* | < 5* | 163 |
| White | 929 | < 5* | 435 | 367 | 284 | 142 | 143 | 2302 |
| Missing | 333 | 17 | 36 | 14 | < 5* | 16 | < 5* | 419 |
| Sex | ||||||||
| Male | 914 | 70 | 366 | 313 | 303 | 144 | 163 | 2273 |
| Female | 1,024 | 72 | 335 | 266 | 249 | 146 | 190 | 2282 |
| Birth term | ||||||||
| Preterm | < 5* | < 5* | 272 | 399 | 480 | < 5* | < 5* | 1151 |
| Term | 1,938 | 142 | 439 | 180 | 72 | 290 | 353 | 3414 |
| Array type | ||||||||
| 27K | 159 | < 5* | < 5* | < 5* | < 5* | < 5* | < 5* | 159 |
| 450K | 1,194 | < 51 | 253 | 59 | < 51 | 150 | 307 | 1963 |
| EPIC | 585 | 142 | 448 | 520 | 552 | 140 | 46 | 2433 |
| Gestational age at delivery | 39.1 ± 1.5 | 39.0 ± 1.4 | 33.7 ± 8.6 | 29.8 ± 6.2 | 28.1 ± 4.3 | 39.1 ± 1.2 | 39.0 ± 1.7 | |
| Age at sample collection | 0 | 0 | 0 | 0 | 74.3 ± 40.3 days | 9.1 ± 3.0 years | 6.0 ± 2.8 years | |
*It is an ECHO requirement that table cells and figures that report data from fewer than 5 participants must be suppressed to protect Participant confidentiality (i.e., marked as < 5)
CBMC Cord blood mononuclear cells, PBMC Peripheral blood mononuclear cells